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blue90lx
03-20-2011, 07:13 PM
Was wondering if a 650 quick fuel carb is to big for a 302 with afr 165 heads and a bigger cam. I know a 600 carb is sufficent enough... just wondering if the 650 is too big for this combo?
Craig K.
03-20-2011, 07:28 PM
I ran a 650 square bore holley mechanical double pumper on my '85, it had heads that would be about what the 165's are, about 10.5:1 compressions and a 500 lift roller cam. In my racing the car ran 3500-6000 for about an hour at a time so I wanted the ability to run a little fater to keep things cool. I never did tune the carb, but on a chassis dyno pull it registered a 12.5 AFR (as I recall).
BIGDATOWN
03-20-2011, 07:46 PM
I would think that would be ok.
acproxer
03-20-2011, 08:37 PM
robert, you should be fine with that. i ran a 780 pro systems on my 347 combo. you might have to do a jet change or two. allen
SlowJoe
03-21-2011, 10:27 AM
i think it will be good but may have to play with the jets. a wide band would be your best friend
QWKSNKE
03-21-2011, 11:57 AM
what's a carb :jester:
93cobra1928
03-21-2011, 12:02 PM
what's a carb :jester:

It's what you get from bread and pasta :jester:
blue90lx
03-21-2011, 02:42 PM
what's a carb :jester:

Yeah i know right lol... But i have been having problems with my car hear lately and i've done everything possible that i can do and nothing is working. The problem is i can jump in the car it cranks up fine on a cold start... but when i drive about 3 miles to the gas station it will not re crank it just turns over:banghead:... is this something u have seen happen before or heard of happening just wondering what your thoughts or everybodies thoughts is on this
SlowJoe
03-21-2011, 03:00 PM
TFI heating up?
blue90lx
03-21-2011, 03:15 PM
TFI heating up?

Yeah thats one thing i didnt think about. I'll see if it is and try that thanx joe
jonosranger
03-21-2011, 03:17 PM
May be ignition coil. Had a Turbo Coupe once that you could drive it anywhere but as soon as you cut it off it would not restart until it cooled off and a coil fixed it
jonosranger
03-21-2011, 03:21 PM
O Yea 650 will be fine. I am running a jetted down 750 dp :jester:
QWKSNKE
03-21-2011, 05:49 PM
Yeah i know right lol... But i have been having problems with my car hear lately and i've done everything possible that i can do and nothing is working. The problem is i can jump in the car it cranks up fine on a cold start... but when i drive about 3 miles to the gas station it will not re crank it just turns over:banghead:... is this something u have seen happen before or heard of happening just wondering what your thoughts or everybodies thoughts is on this

TFI, pickup in the dizzy, or maybe the timing is set to high.