Cylinder head dyno shoot out

junkyardhero said
i thought it was the same casting but the pro maxx has a proprietary porting program that gives it that exxtra?

That is my understanding but could be wrong. I have the standard 171cc version that are supposed to flow about 255 cfm. I haven't looked at them in a while and need to dig them out.

TT5.9mag said
Didnt they have different levels of porting? Like as cast then “shocker” or something like that?

The Shocker is their "CNC" version that has a 185cc port and I think a 2.050" intake valve. Says they flow 285 fm.