Purple Shaft or NOT?

MP cams make power. Don't mistake lack of quality control for "useless". But they have to be degreed and generally are ground way off. My feeling is I'm only checking the intake lobe on cylinder one when I degree. If that is off a lot, how bad are the others I'm not spending the time looking at? Plus, it IS old-school. It makes power but in standard stroke engines it's a turd down low compared to modern stuff. In a stroker it wouldnt be horrid but I really think you'll be leaving a loit of usable power on the table by running it, assuming it's installed right.

Especially if you are planning to upgrade the heads to comething modern, youwant the pistons at zero deck. The dished versions are designed to be "right" with a modern closed chamber head.
With power brakes you are going to want to run a small cam, around 230-235° @ .050 to keep them functional. With a 71 chamber, std Felpro type head gasket, and a cam in the size I mention, you should be somewhere around 9.2:1 static ratio and 8.2:1 dynamic with them at 0 deck. That'ds good for pump fuel and with aan open chamber head. When you upgrade the heads, you will need to upgrade the cam too but the result with a 63cc chamber is just over 10:1 static.