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Originally Posted by camcojb
Huh??!! 
Jody |
Fuel pressure regulator, I spent may hrs on the phone w Arizona Speed and Maine, these are the guys that designed the system for GM, they said that you could change the AF globally w increasing fuel pressure but was not the best way to do it, being a speed density system nothing would correct the sytem. The timing on the other had at wot never changes when you spin the dist., only the idle timing is changed. I have got conflicting answers with calling them mult times, but I keep in the back of my mind if i am talking to a sales man or a tech guy and take it with a grain of salt.
I want to the dragstrip andit was like 30 deg and the car was running way lean to the point that it was bucking down the strip so I increased the pressure 10 psi and it went away and ran consistant 10's after that. THis year we are puting a procharger on it so I will be switching to a xfi system or something like it.