help need a tune file bad
http://www.diy-efi.org/
Could always give this a try as well
http://ls1lt1.com/forum/faq.php?faq=...q_pcmtuningpt1
I have limited knowledge of ECM tuning, and no knowledge of PCM tuning! Sorry I can't be of any help :\
Best I can provide you with is the BIN file if you don't have one already from a stock PCM :\ You'd have to look up your chip code on the outside of your PCM to see which of the bottom 4 letter ones is yours.
ftp://ftp.diy-efi.org/pub/gmecm/bin_lib/16188051

