I was going down the highway and the temp gauge wasn't working and i started smelling something and it was almost out of antifreeze, so i filled it up and later down the road a cloud of smoke blew out the back. the thing i was confused about was just put a brand new water pump and radiator in it, so my guess is head gasket. Didn't look like oil was mixed with any antifreeze. but i do have a cammed 350 laying around and was thinkin about dropping that in there possibly? but other than that i just want more power than before.