Use a Melling m72, skip the high volume.
On the later blocks you need to look out for flashing in the lifter bore feeds.
Buy some promax heads. Don't waste money on speeddisaster or edlebroke.
If you need more, trick flows.
I agree with you and thanks for the recommendation on the promaxx heads, seem to be decent. Just need to decide scat I beam or speed master hbeam rods now! As far as head CC's go my options are 65cc or 62cc from promaxx
