Holley carbs

[Geri]

OK -I admit it ,I know nothing about Holley carbs, so ,my question is, I'm interested in using a pair of Holley 600CFM vacuum secondary carbs . I see many 600 CFM carbs but a variety of list numbers- is the list number vehicle application? jet sizes? vacuum diaphragm, spring tension?

 

[rlem1977]

What are you putting them on and what is the intended use?

 

[lewtot184]

the 1850 would be the easiest, but there's a bunch of variations.

 

[Geri]

OK -I admit it ,I know nothing about Holley carbs, so ,my question is, I'm interested in using a pair of Holley 600CFM vacuum secondary carbs . I see many 600 CFM carbs but a variety of list numbers- is the list number vehicle application? jet sizes? vacuum diaphragm, spring tension?

STR 15-8 crossram for my 383 for street.

 

[Geri]

the 1850 would be the easiest, but there's a bunch of variations.

thanks

 

[rlem1977]

STR 15-8 crossram for my 383 for street.

For what it's worth, if you don't already own the STR-15-8, here are a couple of articles from Hot Rod on 383 intake tests. It's from a while ago, so prices they quote are not accurate. You might have already seen these. Have fun with your build.
Part 1: http://www.hotrod.com/articles/hrdp-0712-mopar-intake-manifold-comparo/
Part 2: http://www.hotrod.com/articles/hrdp-0801-mopar-intake-manifolds/

 

[lewtot184]

if you do the holleys connect the two vacuum pods to balance the secondary opening rates. parts to do this are available from holley. I wouldn't pass on a matched pair of edelbrock 600's if you run across them. also, some of those intakes benefit from a pop-off valve.

 

[Geri]

For what it's worth, if you don't already own the STR-15-8, here are a couple of articles from Hot Rod on 383 intake tests. It's from a while ago, so prices they quote are not accurate. You might have already seen these. Have fun with your build.
Part 1: http://www.hotrod.com/articles/hrdp-0712-mopar-intake-manifold-comparo/
Part 2: http://www.hotrod.com/articles/hrdp-0801-mopar-intake-manifolds/

thanks- not going to race it ,more for looks on a street car. OK ,who am I kidding.