I may have messed up here.....

[QUOTE="moper, post: 1972126498, member: 521"%]
IMO you have the wrong pistons. Source a set that has a big dish, then set the quench at less than .040 . There's no reason you have to have a static anywhere over 9.5:1 for this build. Build it to run on your low grade - you'll enjoy the final product more and not have to dick with the tune to make it work.[/QUOTE]

As I’m using aluminium closed chamber heads (Trickflow 240’s), does this mean I get the builder to work to 10.5:1 static due to what I understand to be the one point of compression difference between iron and al heads? Otherwise I will essentially be no better off than the standard 8ish to 1 won’t I?