i have to replace my tbi and was asking about other engines and was told the best thing for my price range was to just replace the tbi and that's what ill do. but i was thinking after that i would do the vortec head swap. so i start reading threads about it and it seems like people were saying that it could not be done for under 2000$ with all the odds and ends. is this a real world cost? i would think at that price you could get great aftermarket heads for cheaper without having to change the manifold? sr torquer heads