- Jan 5, 2013
- 54
- 3
- 9
ok guys i have a question about fuel pressure on my foxbody mustang.i installed an adjustable fuel pressure regulator and guage.at idle its right at 40psi,but i when u hit the throttle and rev it out it drops to about 30-32psi. so is it suppose to drop like that. my combo is a 351w with edelbrock rpm heads and trickflow intake.im still using the stock pump.