I will never understand this. If you don't have heads, why not W-2's?? You will spend just as much correcting geometry, buying aftermarket rockers and all that and the W-2's make WAY more power. Rockers cost the same (unless you are using stock junk) manifolds cost the same, headers cost the same. I just spent a buttload to build Pcar heads so I know. I have W-2's sitting there now. I can tell you had I had the w-2's from the start I would not even have looked and a production head. Even with all my port work, all my testing of valve jobs etc, the W-2's will be 75-80 HP better if I never lay a grinder to them. You are much more lift limited on Pcar heads. They don't have enough cross section, especially if you are using a stroker deal. The exhaust port SUCKS, BLOWS, STINKS AND SMELLS TO THE END OF THE WORLD and no amout of welding and grinding will ever fix that.
So I would say to you to stop and reconsider.
Spend your money once.
BTW, it wasn't a dumb question. It's very valid. Just do ALL the math and cipherin' before you spend any money.