Timing is locked out at 35 (no advance)and I have 20 degrees of start retard on my MSD digital 6 plus box. The motor only has 9.2 to 1 compression. It started out with `65 289 heads and around 10.3 to 1 . One of the heads was cracked when I got it running (machine shop didn`t see the crack ) and so I went ahead and bought the Victor jr. heads (60cc )That I plan to use on my 393w later on. I dont want to mill the Victor jr.s to get more compression on the 308 because I still want them to be 60 cc when I put them on the 393w .
