I just finished building my 383, it has 42lb injectors, forged internals trickflow heads, comp 230 / 236, .576 / .570 113 LSA cam, anyways, im using lt1 edit for tuning, and i've changed the injector size from the stock 24lb to 42lb injectors and changed the displacement for the 383. Anyways im still running rich, my blm's are 108 everywhere, and it seems like im running alot of advance, alot more then what i think i should be running. Any help would be appreciated. oh and im still using the maf

 

Do you svo's or accel's? you have to change the "inj offset vs volts" to match the injectors being used.
Give me a shout I'll get you straighten out no problem.

LJ

 

Subscribing

 

No experience with this but some have said that leaving the displacement at the stock setting makes for a better tune.

Like I said, I have no first hand knowledge but a search might turn more up.

 

im using lucas 42lb injectors

 

What injector constant are you using, and what rail pressure?
Have you modified the ve table, or the maf table from stock?

 

I havent changed ve tables, or maf tables yet, i have it set for 42lb injectors, im still running the stock fuel pressure regulator. I havent adjusted inj.ofset vs. voltage

 

You need to find out what pressure your injectors are rated at and what your actual rail pressure is so you can set the injector constant correctly.
That's where you should start.