The last one I built also got the 307 pistons, however it received a decent cam to make use of the new found squeeze to be able to ingest a little more air. The 194 head would have reduced the combustion chamber which would have helped my goal. I found the limitations being the intake ports on the head.

The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me