First I really enjoy reading all of the post here
Second I have a low compression stock 360 that I am considering changing the cam and heads.

Is there a certain point that I need to clay the piston and mock up the combination that I want to use. And then measure the clay. The cam is an Elgin # e9819 The valve lift is .520 and the exhaust is .544 the lobe centers are int. 107 and the exh.117 so it looks like the cam has 10 degrees of advance ground in it. So I would install it straight up and down.

Any advice you could give me would be greatly appreciated. =D>