95 4.3 TBI spark table info

[skandolis]

first off i don't claim to have any knowledge of the tbi 4.3s, i do have a 95 blazer (CPI) which runs 7427. did the 95 tbi motors have the "vortec" heads? the cpi motors did.(completely different spark requirements from the prevortec heads......) i played around with several different bins for mine, found that the astro cpi tunes had quite a bit more aggressive spark tables than the blazer. made a "bastard child" bin.really woke my blazer up. maybe you could look at some different bins and see how they handled the spark. you cant take the 7427 tables copy and paste, but they should point you in the right direction......
either way, your gonna want to do some data logging to see what your truck really wants. sooner or later somebody with some knowledge will chime in............

have you checked out tunerprort? i believe most of the folks on here will be more familiar with it.....