Hello Members.
I've been tuning my 302 in my 67 mustang for a while now and am wondering if anyone tuned this setup to save me some work.
I have a ford racing 302 with the gt40x heads and a swapped the cam for a comp camshaft (roller they recommended for use with the carbs xe270hr112). Static compression is 9.1:1.
My current carb setup is this:
- 48 ida with 33 chokes
- floats all set (carbs all setup)
- idles 120/70
- mains 145/f5/200
- 50 accelerator nozzles
- idle jets at 3/4 to 13/16 out
- fuel pressure 2.75psi
Here's what I go so far
- running smooth through transition but falls off above 4500rpm (it's actually pretty responsive and I can do 'almost' anything with the throttle)
- off idle and below 2000rpm if I nail it (in any gear) it falls flat
- steady cruise I get burbling in the pipes
- I get fuel splatter all over the back of the car if I do a hard run
The car runs real strong with the 37 chokes. But if I put them in I get a lot of stumbling between 1800-2800rpm.
I'd like to get the 37 chokes back in the car as the weber tuning manual indicates it should work. But:
- I'm already pretty large in the idle jets and holders
- I'm in an f5 tube (f11 minus the high holes) and unsure what to try
Thank you for the interest and assistance
I've been tuning my 302 in my 67 mustang for a while now and am wondering if anyone tuned this setup to save me some work.
I have a ford racing 302 with the gt40x heads and a swapped the cam for a comp camshaft (roller they recommended for use with the carbs xe270hr112). Static compression is 9.1:1.
My current carb setup is this:
- 48 ida with 33 chokes
- floats all set (carbs all setup)
- idles 120/70
- mains 145/f5/200
- 50 accelerator nozzles
- idle jets at 3/4 to 13/16 out
- fuel pressure 2.75psi
Here's what I go so far
- running smooth through transition but falls off above 4500rpm (it's actually pretty responsive and I can do 'almost' anything with the throttle)
- off idle and below 2000rpm if I nail it (in any gear) it falls flat
- steady cruise I get burbling in the pipes
- I get fuel splatter all over the back of the car if I do a hard run
The car runs real strong with the 37 chokes. But if I put them in I get a lot of stumbling between 1800-2800rpm.
I'd like to get the 37 chokes back in the car as the weber tuning manual indicates it should work. But:
- I'm already pretty large in the idle jets and holders
- I'm in an f5 tube (f11 minus the high holes) and unsure what to try
Thank you for the interest and assistance