Looking for a good SC 383 tune up. If you have an OBDII *.lt1 file, please send to me:

Let me know what hardware variables you used.

I have a 383 with all of the appropriate goodies and LT4 heads, headers, etc. Need to understand some basics to get past the overly rich mid-RPM and too lean upper RPM.

ultra_dog@yahoo.com

Thanks,

Ud