http://www.chevelles.com/forums/attachment.php?attachmentid=819/img
Wouldn't this be cool, not so sure about practical. Eight 2 1/2" throttle body's,that's more than twice the cfm of a dominator.Weld in O2 bungs and add an aftermarket control box/module. What about using it with the mechanically driven pump?

I have heard that EFI advantages aren't there with big power, probably O2 are telling the computer to lean when the motor wants more.

I'm not sure about the pump, but most if not all aftermarket CPU's run without an O2 sensor. The higher end units have optional wide band O2 inputs which would be usefull. There is a company in Florida ( name escapes me now ) that do these conversions routinely.

The comparison between the dominator and the stacks isn't really valid, because you have to remember the carburated motor has a large plenum to draw from which provides more volume for any one cyl to draw from than an individual stack. The stack has an advantage in that you can tune it's length for the power band.

There is a guy in Sacramento that does it. They seem to work real well (from what I have been told) but it isn't a cheap conversion.

in sacramento is dan fodge but he is pricey. do a serrch for affordable fuel injection the company will tailor build anything you need at a fraction of the cost of dan fodge i will repost with some links

okay in the year i have been researching fuel injection as i am some day considering it for my motor and after countless talks e mails imo theese to company are best for knowledge price,s and product,s eaither will tailor make any part you may need at reasonable prices. http://www.force-efi.com/
http://www.affordable-fuel-injection.com/ hope this helps
p/s the links are good

About 6 months ago I did a cost analysis of most of the available systems, both plug and play and diy. The best deal in my opinion is the accel dfi. The diy systems sound economical until you add up all the nickel and dime stuff and realise how good the accel system is.

Another cheap and robust system is the ford eec_iv. It is very heavily supported and with some knowledge can be ported to almost any platform.

An individual runner setup converted to port EFI is an excellent performing combination, but it will cost a few bucks and you need to take care plumbing vacuum acessories, MAP sensor, and the IAC-- they all need to be plumbed below the throttle blades of EVERY runner-- this is specific setup required of an IR-type manifold. The manifold is really the only "non-standard" thing in the combo; after you have the manifold converted you piece together everything as you normally would for any other EFI system-- injectors, high pressure electric fuel pump & regulator, and pick an ECU to control everything.

Throttle response out of an IR manifold (if everything is correctly sized) is nothing short of amazing. They also look cool. :thumbsup: Air cleaner fitment can be a chore though...

About 6 months ago I did a cost analysis of most of the available systems, both plug and play and diy. The best deal in my opinion is the accel dfi. The diy systems sound economical until you add up all the nickel and dime stuff and realise how good the accel system is.

Another cheap and robust system is the ford eec_iv. It is very heavily supported and with some knowledge can be ported to almost any platform.

Having pieced my own EFI together you are 100% right. The price adds up QUICK. However, in my experience there is no such thing as a "complete" kit and you'll have additional costs once you get things in hand and realize "hmmm, I need to change this piece for one of these" or "hey, they didn't send me one of these!" You always seem to end up buying things that weren't included in the "complete bolt on kit."

The Accel combo is nice; the manifold is very nice, as is the throttle body and fuel rails... however their ECU still has "issues" such as their add-on wideband not working properly. I know of several people who have either sent their Gen VII back or sold them because they could not tune out some issues and also because of the non-functioning $900 wideband option. I'd use their intake without a second thought, but I'd use another ECU. You can buy the intake/fuel rails seperately.

The Ford EEC-IV is also a good computer and can be modded to work on just about anything, but it is a more difficult retrofit because it's MAF based and not speed density based-- i.e. you'll need to run intake ducting and place a MAF sensor between the air filter and the throttle body. However, a company out there (and I can't recall which right now) recently came out with a modded GM MAF sensor and translator box; you can drop the modded MAF right under a standard air cleaner between the air cleaner and the throttle body and with the translator box it will interface with the EEC-IV. This way it will still look like a "normal" carb'd setup.

Troy

A friend of mine picked up several small block Chevy Hilborn units a few years ago when no one wanted them. He built a 427 small block with the Hilborn unit and late model injection adapted to the unit. Laptop computer tuning had the car running excellent. Some people may have seen this tangerine coloured car at the Nova Nationals in the past. I believe he is working on another one now. We're cheating a little and putting a complete '94 LT1 350 and overdrive automatic in our '69 el Camino. That will give the old brain cells all the workout they need getting the wiring for that sorted out.

:cool: COOL KEITH! IMHO there is NOTHING cooler than 8 stacks! I beleive Force EFI was one of the pioneers of the retrofit as I spoke to them nearly 7 years ago. ( $3000 + the $850 for the BBC Crower setup was beyond my reach)

Kinsler in I think Troy, Michigan also does street Hilborn and Crower setups.
I'm not sure about the efi side or if they just do the old mechanical setups
but I think they do efi now as well.These have always been one of my
favorite looking induction systems, since the early sixties altered wheelbase
cars and even the old Can-am big blocks usually used 'em.

Build your own!
I have Hilborn 15" stacks on top of a 392 Hemi. I have taken out the Hilborn fuel lines and injectors and replaced them with standard electronic injectors, and then used braided tubing for fuel lines. I also use the Hilborn fuel pump (gutted) on the timing cover, fuel block (gutted), external electric fuel pump, and then twin electric water pumps (not automotive 12v), and then the alt is below the headers and the only pulley on the crank, electric fan on the rad. Oh-ya Venom NOS dry system, not hidden. and funny car type baffled zoomie headers :)
There is a guy on ebay that makes holders for the injectors for his Viper motor in his "T" Bucket. with these holders the skies the limit. you can drill almost any manifold near the intake ports for the injector, and then gut your carb so it's just a butterfly for air, you don't need a fuel rail. he also sales a fuel block with as many ports as you need. Then get a computer and wire harness out of a Camaro or Vette, or ask your junkyard (Auto dismantles to some) guy to cross reference it and you will find them in other cars but you'll need to change the chip. Or the guy that sales them also has a link to some one that will build wires or any type of computer or chip you need.
I use Speed Density ('91-'92) so that I don't need the MAF valve. Speed uses vacuum, not air flow. You also need to make a new chip if you build the motor, versus MAF you can change some things and it will learn it. Besides the MAF doesn't work good with the stacks! Errr! It's all apart, I'm making frame changes (Chassiss Works total rear axle housing and 4 link.) it is full fendered Pro Street "T" (66" wide from fender to fender) and has 18.5's and nothing sticks out of the fenders.
Since I have started working with fuel injection, I have learned that Carbs are toilets that flush fuel through, that washes your rings which is why fuel injected motor don't wash your cyl's and go 200k before they need rebuilding.
But I still like and use carbs also, don't get me wrong!
I have pic's of the holders, I just don't have a way to post them.
My two cents worth! Pat

This unit was already tapped and ported beneath each throttle plate and plumbed for sensor. I think it said it used a Ford TPS, had modern fuel rails and 75 lb injectors installed. I was SERIOUSLY considering buying, even if it was to collect dust, but I got hung up at the insurance office and missed the end of auction. I think for $360.00 it would be an interesting magazine rack. It was rect. port BBC

Pat,if youhave digital pics, email them to me. I'llput them in my showroom.

http://www.camcojb.com/superformancesmall/cobramotor.jpg

http://www.camcojb.com/superformancesmall/cobramotor2.jpg

Had one a small block Cobra replica; ran great. Plumbing for the individual lines per port is the toughest part, but certainly doable.

Although the total airflow is greater than a Dominator, it would allow much less than a Dominator per port. A single plane can share the carb with each port, but an IR setup can only flow what that butterfly can flow. I had 2 3/16" butterflies on my small block which still made about 600 HP (480 rwhp) on a 10:1 406 on pump gas. But even they flowed less than my heads so were a bit of a restriction.

Jody

Please look into Force Fuel Injection.

Here is their web site;

http://www.force-efi.com/stacks.htm

Look under their "Stack Conversions"..

I bet you will like what you see AND I think they would even do a SB Z-28, 2x4 manifold too??

pdq67

I have a few of Pat's pix in my showrroom,new showroom format,so I's a-learnin- slow..

http://www.chevelles.com/showroom/showphoto.php/photo/2981/cat/500/ppuser/5752

I'll get the rest of the pix in there tomorrow Pat.

Cool new showroom features, like the folder option. Me likie!