I'm running a performer rpm air gap on my 383 now. My engine specs are vary similar to yours with exception to the heads and cam. The only thing is if you drive while its cold out, the air gap warms up very slowly. Making it hard drive. but since your mainly racing you cant go wrong with the air gap

 

X2 performer rpm air gap.

Dave

 

victor Jr.

 

Performer rpm would work well with your cam but are your heads too big for your cam? What size intake runners you have?

 

Not if he has a 180 cc port volume.
I.M.O. it would work very well.

 

Performer RPM Air Gap for sure. I wouldn't even consider a Vic Jr until cam is at least 230-240* @ .050 and heads are at least 200cc.

 

N20 go

READY MY POST, I THERE WAS A ? MARK AFTER WHAT I SAID, THAT MEANS ITS IN A QUESTION FORM BECAUSE WE DONT HAVE ALL HIS INFO

 

The lunati 60112 would work better with your heads. I think you would be much more happy with that cam and your heads. You will need gear and converter to match the cam. I would say 2,500-3,000rpm stall or a little more then gear it accordingly

That 200cc head is a platinum or standard?

 

It is an older standard head(1999), not the platinum. I already have the cam and I did consider going a little bit bigger, but for right now I am just shooting for some consistent mid 13's.

My current gears are 3.08, which I plan on changing to 3.73's as soon as I get done paying for my motor, also my stall is 2200, which I also plan on changing to a 26-2800, when my budget allows it.

 

I would be looking at a 650 carburetor if your gonna use that cam with that little of gear and that larger head. Use a dual plane intake, preformer rpm. Try what you have if you already have the cam !!!

 

thanks...

 

My vote is for the performer RPM,
whether you go the air gap or not??? I will say that at or below freezing the air gap can cause the throttle plates/carb to ice abit until it warms up, especially if you running the intake air from ambient and not from underhood. Under hood air seems to warm things up abit quicker.


I've tried both and based on my experience I think you would be satisfied with the air gap!!

 

Baxter's auto parts (if one is close to you) is having a killer sale on edelbrock items (carbs, manifolds, and assecories)

 

Edelbrock Performer RPM Air Gap! The best SBC intake out there for an engine that spins less than 6500 RPM. IMO!

 

Edelbrock Performer RPM Air Gap! The best SBC intake out there for an engine that spins less than 6500 RPM. IMO!

The Weiand Stealth Air Strike is every bit as good as the Edelbrock Rpm Air Gap i'd try the Weiand if it were me.

 

I was looking at some pictures in your sig. The Yellow 68.
I couldn't help but notice, you have a Weiand Stealth Intake Manifold.
Which version do you have? I used to run one..and it worked real good up to 6300 rpm. BTW...nice 68...:thumbsup:

 

Hey thanks, it is actually an 8004, which is a spread bore. I used to run a qjet, but I am going to a square bore carb this season, so I want a new manifold. I looked into some adapter plates, but I heard they never seal correctly.

 

For a street strip small block the RPM air gap is a good choice and it has the ability to make HP all the way to 7,000 RPM when ported right. I just did some Dyno testing on ported verses, as cast intakes on a 400 small block. We tested the RPM AIR Gap, Victor Jr, and Super Victor. The Air Gap surprised a lot of people when it make 600hp in ported form. The read the article Check out this Link.

http://www.j-performance.com/images/stories/Featured Headlines/manifold_man.pdf

 

Nice job Bryce!! :thumbsup:

 

my 383 enjoys its air gap!

 

Question...Have you tried playing with this program from Comp-Cams
Select CamQuest 6.
Heres the link: http://www.compcams.com/Camquest/default.asp

Hours of fun and it's FREE...:yes:...lol
Mike

 

Thanks Mike thats a cool link......

Very nice article Bryce

 

thanks!!

 

Another vote for the RPM air gap. I have one on a 383 with TFS heads and a 220/224 at .050 hyd roller cam, 700cfm holley and its right around 480hp and 500 lb/ft. Its a blast to drive around all that torque. Gets my 4x4 up some real big stuff.

 

Weiands are now starting to be manufactured in China!

That might explain why my Weiand Team G never fit properly, intake ports didn't line up on #1 & #3. Switched to an Eddy Super Victor, fits perfect.

 

Your intake was domestically cast. The permenant mold intakes that I see are extremely nice from overseas.

I hate China sourcing but these days companies have no choice at times. That is a whole nother topic.

Just because something comes overseas does not necessarily mean it is good or bad. You can get absolute junk or decent parts. It is a huge challenge.

 

Your intake was domestically cast. The permenant mold intakes that I see are extremely nice from overseas.

I hate China sourcing but these days companies have no choice at times. That is a whole nother topic.

Just because something comes overseas does not necessarily mean it is good or bad. You can get absolute junk or decent parts. It is a huge challenge.

So I guess I was just "lucky". I've used Weiand before with no problems. Guess I just got a bad one.

 

Guess so. I'm usually "lucky" myself..

 

Imho, at these rpm's and N/A'd, an old Holley 300-36 or Weiand's original Stealth.

Save some money and hunt onna the other up off ebay..

pdq67

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thanks for the advice Paul..

 

All the new Weiand intakes are way better than the 300-36 and stealth on just about any application as I saw on the dyno. The 8120/1 on a 480 HP 383 actually worked very well on the dyno.

Cylinder to cylinder A/F distribution is much better.