[quote] [/q At the same time, the custom piston can be dished to lower CR a bit, depending on the head. I'm not sure how that effects quench and detonation. I have not found much discussion about that. uote] 68Bigbird, You are right on your post on 0-deck but you seem to have misted the point that if you use 0-deck to get the proper quench height by cutting the block or by using taller pistons you CAN run 10 to 1 compression on pump gas with no detonation. If you go to all the trouble of 0-decking and then dish the pistons to reduce compression you just lost the power gain you wanted in the first place.
The other part is being careful with the cam you use. Need one with late intake valve opening to help with dynamic compression, Should be around 170 LBs per cylinder.
The cam may be why Vikki will have trouble with 0-deck. (she wants to stay original).