400 budget compression HELP +++++

Put on a set of service prepped 75cc RPM heads, RPM intake manifold, long tube 1-3/4" headers.

A bigger camshaft is going to make more power still. It was proven over 20 years ago that you could put a bigger and bigger camshaft in a low compression engine and keep going faster in the 1/4 if you were using the proper gears and converter.

The problem we've found.....if you get the top end flowing really good on an old worn engine.....massive blow by.

We've had an old 100,000 mile 8:1 383 making 525 HP on the dyno. We used 5/8" x 3' hoses to tie the valve covers to the pan evac system and we decided to disconnect the hoses off the exhaust once to check the blowby. Those 3' hoses stuck straight out horizontially from the valve covers there was so much blow by.