Thanks But I am not gonna CC the combustion chambers there a well known off the shelf head with known cc's
I will find out what they are.

Has any one tried Crowers EDM roller lifters? supposed to have a tiny hole drilled into bottom of lifter too lube the roller?
https://www.crower.com/lifters/hydraulic-roller-lifters-mopar-hemi-5-7l-6-1l-high-performance.html


D Barnett
A&P mechanic,
FCC general radio Telephone operator.