Im running the 279 thumr with vortec heads. I have a vodoo cam that should be here tomorow sometime to swap it out. Its been broken in and always changed with the zinc VR1. When I pull it i'll keep the lifters in order so someone can use it. If your interested i'll cut you a great deal when I get it pulled (soon?
)
If I were you id shoot for something more performance oriented..