[quote=LifeguardWow, that's a lot of compression. Was that with the .040" Fel Pro gasket? Did you deck it the 194 head to get less than 64cc chamber volume? I'm presuming this was a domed piston? [/quote]

.038" on the head gasket.
The 194 head was decked quite a bit. Chamber volume was in the 50s CC range IIRC. No unshrouding the chamber walls for better flow.

Flat top 307 SBC pistons w/4 valve reliefs.
Cranking compression was 220-230 PSI on all cylinders.
The pistons came out of the block, .002-.005" range

MBHD

12 port SDS EFI