If you are want to bump the compression ratio up, definately go with the KB107. The Speed-Pro sits too far down in the hole, plus they have 4 valve reliefs. Which heads are you using? How many cc's?
right now it looks like stock heads until I get the money up for a nicer set. I have to tear down th ebottem end because of a bad crank and bearings. So I figure I would get the rolling assembly done while i'm there. but to answer your question. Just the stock 360 heads and I will have the new springs for the 278 Cam.