I've heard that Dan Paramore Racing (DPR) does that best cylinder head work. Then I saw the TODA Racing ITR project's head done by Portlow. Spoon also does cylinder heads, right? It's obvious that the factory ITR ports leave little significant room for improvement, but is anyone running a modified head by these guys? Is there another shop I'm forgetting that is as good or better?

 

dont forget ENDYN http://www.theoldone.com They did my head and I love it....by the way, Dan Paramore Racing is no longer..it broke up a while back..some of the guys from DPR work at portflow now(tom fujita)

 

I'd go with Portflow or Endyn.

 

Actaully DPR is back up and running with a new shop. Give them a call and tell them I sent you. 310-328-9488. They would be my choice if you have the budget.

 

Thanks. I know they make titanium retainers for valvetrains, but does anyone make titanium valves, valve springs, rockerarms, hollow camshafts for Honda engines? That way you could rev higher more safely.