ProComp/Speedmaster aluminum heads

Well that's about all I can do with the heads in my lap watching The Flintstones LOL I don't have the flow bench in my electric lazy boy LOL...
My valve springs are good to .550 lift - which my cam is .427/.455 LOL.... WAIT! I'll gain about .030 with the 1.6 Magnum Rockers!!! LOL