I'm thinking this is another 'throw together' engine supposedly from a Roadrunner? First thing that is very obvious is 'EARLY HEADS' pre 68 as there are NO core plugs in the ends. The chances of them being 915's is very rare, so probably 'common and garden' 516's...
Closed chamber heads with low comp pistons and a BIG camshaft.
Should make 400hp all day long with that set-up...
Bet its still got the 1.60 exhaust valves which hurt the exhaust side with HP manifolds...
Carpe diem, quam minimum credula postero, thanx Horace!
There’s no point trying to fix stuff that ain’t broke,,, 'but if ain’t broke',,, you is not trying hard enough...
