I have a couple of 350 blocks and heads and was looking for the most cost effective way on a rebuild to increase compression to around 9.5:1.

The heads I have are cast 47 (2 sets small valves and 72 cc) and a set of 4X-3H (large valves 98cc).

I could deck the block but that will only gain me about 0.5 on the compression ratio.

I have built many chevy engines and just picked the piston with proper dome to get desired compression ration however it appears Pontiac only has flat tops and with good flowing heads, the CR is too low.

My preference is to build a Pontiac but if the costs are too high I will need to consider a SBC.
What have you guys done and what do you recommend?
Thanks,
Tom