[bigjimzlll]

I think the summit heads are a fuellie/camel head recasting.
Vortecs would be just fine. I havent used a set but a lot of friends have with good success. The only problems with them can be...intake gasket sealing and they require a different intake and center bolt valve covers. They are a thinner casting then an aftermarket head,
Those Ebay heads actually work quite well(if they are assembled correctly). They are cheap Chinese castings that don't have very good QC., but if assembled by someone who knows what their doing they work real well. I wouldn't hesitate using them on a street car(especially at altitude)