Aluminum cylinder heads

Seems Trickflow is competitive compared to Promaxx if you have to buy rockers anyway. No need for geometry correction too.

Agreed.
I already had my rockers so went with the Promaxx heads. Plus I want to try conical springs and the tool steel retainers so after all is said and done, it'll pretty much be a wash on cost. If I really really wanted to be competitive with the trick flows, I would lose 30 to 40 pounds and lay off the pasta.