You would probably loose 20-30hp with a hydrolic roller.

I’ll look for the flow numbers on the heads, they aren’t fully ported, it was like a stage 2 port job

Wade Metzinger 918-809-0987
71 Cuda 9.28@145 -1s, Pglide
68 Cuda 10.64@124 1.45 60's 318->390 eddys
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