I've been reading through the Falcon Six Performance Handbook. Very nicely done. However, this new information has really made me realize the magnitude of what I'm doing with my engine.
I am planning to install an Aussie head on a stock short block with a mild cam (260?) and HW5200 2bbl carb. However, as I was reading the section on heads, I came to realize that I may actually deterioriate the performance of my engine.
If I understood properly, putting on the aussie head, without any other modifications to the engine, will actually increase the overall size of the combustion chamber, lowering my compression ratio and deteriorating the horsepower.
So now, I think I need to get the head (and engine block too?) milled to reduce bring the overall combustion chamber back down to ~ stock size. Or, put in taller pistons?
Wow....