each motor is different. don't think just because everyone says to run 16 to 18 intial and 36 to 38 total is correct, this is abunch of b/s. my 383 6pk loves 22 inital and runs great with48 total. i run 70's with a 33 squrt, point is find out what works for your gig. standard usual b/s can be a baseline and thats all. i'm not saying that there aren't issues at play here however, there is a correct starting point and then work from there. i'll see if i can get you this tech archive but ANYONE on this site that has a 6pk has read this article, it helped me a bunch. can't figure out how to link the tuning info to you. get a hold of DAYCLONA, member here, he is the one who posted it, great tuning info, follow it step by step. hope this helps.