Originally posted by More Power:
Recipe for maximum fuel economy:

1- Engine dynamically balanced and carefully assembled using stock CR pistons/gapless rings.
2- Cyl heads with 1982-1993 6.2L "C" series precups.
MP
Two questions here
1)I was under the impression that everyone was wanting 18:1 pistons, especially if turning up the boost.
2)Will using the latest heads (2002+)have that much less effect? What is the deal with 6.2 "C" series precup heads?
Dave