How much is the cost of assembly going to be on the heads or are you going to do that alll yourself? If not factor that cost in too. 600 Doesn't sound too bad but figure in the extras.
I honestly don't know that much about these heads, but I have seen people run pretty well with them. I don't think you need different pushrods, but don't quote me on that.
Skyler
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-1989 Saleen Mustang #406-
TFS TW Heads, E-303, Edelbrock intake, 70mm TB, 73mm MAF, 24lb injectors, 1 5/8 shorties, Off Road H, 3 Chamber flows, Jaz Race seats, Back seat removed, sub-frames, Roll Cage, and a 80 shot of N20.
12.54@107.4 Motor
1.69 60'