carb question
Thread Starter
Melting Slicks
Joined: Dec 2007
Posts: 2,661
Likes: 14
From: Olivia mn
carb question
hi guys, I have a 302 ci motor and I was going to put a 4 barrel carb on it in place of the two barrel thats on it now.
I have calculated that I need a 500 cfm carb, I was going to use Holly so that leaves me two options ether 465 cfm or 570 cfm street avenger both with vacum seconderies
which one should I choose, is the 570 too big?
Thanks guys
I have calculated that I need a 500 cfm carb, I was going to use Holly so that leaves me two options ether 465 cfm or 570 cfm street avenger both with vacum seconderies
which one should I choose, is the 570 too big?
Thanks guys
Melting Slicks
Joined: Mar 2007
Posts: 2,100
Likes: 12
From: Frederick Maryland
Is that a genuine Z28 302 engine? If so, that's one hot piece of iron. Chevy gave it a big cam and if I remember correctly, a Holley 780 to keep it happy at high rpm's.
A 600-650 should keep a 302 quite streetable. Less cfm than that should work fine and idle good, but could suffer at the high end.
A high school buddy had a '69 Z28...that car would turn the tires blue in any gear. I about cried when he sold it years ago for $3500!!! That was a lot of years ago, but still...that car would GO!!!
A 600-650 should keep a 302 quite streetable. Less cfm than that should work fine and idle good, but could suffer at the high end.
A high school buddy had a '69 Z28...that car would turn the tires blue in any gear. I about cried when he sold it years ago for $3500!!! That was a lot of years ago, but still...that car would GO!!!
Le Mans Master
Joined: Apr 2006
Posts: 5,403
Likes: 95
hi guys, I have a 302 ci motor and I was going to put a 4 barrel carb on it in place of the two barrel thats on it now.
I have calculated that I need a 500 cfm carb, I was going to use Holly so that leaves me two options ether 465 cfm or 570 cfm street avenger both with vacum seconderies
which one should I choose, is the 570 too big?
Thanks guys
I have calculated that I need a 500 cfm carb, I was going to use Holly so that leaves me two options ether 465 cfm or 570 cfm street avenger both with vacum seconderies
which one should I choose, is the 570 too big?
Thanks guys
