[jvoiles]

I'm looking for a good carb for my '66. I'm building a BB 427 with 10.5 cr, with AFR 265 cnc heads, lunati ft 402a3 solid cam, Performer RPM intake that I will mill divider down (how far to mill down?) I was thinking Holley 870 SA but I am a complete newbie in the carb area.

The car will be a daily driver, but I would rather lose a little in the gas usage/cost to purchase area than lose some performance during the stop light to stop light thashings. That being said, track performance is not a main concern, or at least I think so.

 

[nastynate]

850 annu boost demon out the box.

 

[dirtlips408]

HP750 or HP950 street.

 

[Willie496]

Would the 1000 demom work on the same engine with 12.5 c/r with a Victor Jr O? I think it is the same as a holley 850DP Not?

 

[Dave427]

hp750 or hp950 street.

x2

 

[The Old Reliable]

Swap/sell that intake & get the Edelbrock AirGap. :yes:

Carb would be a new Quick Fuel HR-780. :thumbsup:

About 430, if you buy it right. :beers:

 

[The Old Reliable]

The approx. number in earlier post above was about 30-bucks high, so even better. :yes:


Found a recent invoice for a QF HR-780 = 386.00 (+ 16.42 shipping).


Very reliable full-featured carb, especially for the coin, that works well & tunes easy right out of the box. :thumbsup:

 

[blasttime]

Theres clearly only one choice Pro - Systems SV-1 All that bling and 24 hour hot line you will be the talk of rvery cruise night.

 

[blasttime]

Theres clearly only one choice Pro - Systems SV-1 All that bling and 24 hour hot line you will be the talk of every cruise night. :yes:

 

[71454Chevelle]

Pro System's 950HP. You go wrong with this carb.

 

[dreis454]

HP750 or HP950 street.

x2

Xthree

 

[jvoiles]

There is a considerable price difference between the two, is it worth it to go with the 950?

 

[dreis454]

There is a considerable price difference between the two, is it worth it to go with the 950?

Considering its a 427 with good heads = high rpms......yes.

 

[jvoiles]

I was just reading a thread on the 950 and it said it is a 750 main body on a 850 base. Is this true as I have a 850 for parts. I could buy the 750 and mount it on my 850 base.

 

[jvoiles]

Anyone?

 

[71454Chevelle]

I was just reading a thread on the 950 and it said it is a 750 main body on a 850 base. Is this true as I have a 850 for parts. I could buy the 750 and mount it on my 850 base.

I'm not sure how easy it will be to get a carb to work correctly with the parts you have. But to answer your questions, yes its basicly a 750 body with an 850 base plate. Pro Systems built one for me a few years back and it flowed 824 cfm. I like the 950HP on a mid-sized BBC because they provide very crisp throttle response with enough flow on the top end to make decent HP.

 

[69-CHVL]

The 950HP Holley or 950HP Prosys are AWESOME carbs and VERY responsive. Ran several of them and I LOVE them.

And yes, the 950HP's flow around 830cfm - will be more than enough for your ride.