I put a crate ZZ383 motor into an '85 Vette. Also upgraded from MAF to S/D system using computer out of a '91 Vette. Got the chip programmer and have been tweeking here and there, but still can't get this thing to accelerate smoothly. Have air/fuel meter and seems to run lean on acceleration, but looks good on wide open throttle.

I'm brand new to prgramming these bin files and am still learning what all the fields mean. Was wondering if anyone has a bin for this application. Need a good base to start from. Any other tips welcome.