Thanks Dogdays. You are correct that I already have the cam mentioned, as well as all of the other parts sans intake. Sometimes it pays to be a packrat and horsetrader- it is the only way I can afford to have several toys at once. OEM 71 440 pistons advertised as 9.7 to 1 compression. Just like the rest of these parts I got them in a deal. I have not assembled to measure exact, but do anticipate having the heads cut to get somewhere around 9.1. I still have to have a valve job done anyway. It would be fine if it wound up at 8.75 to 1 as it will be true compression- not the 8.2= 7 that the factory smog motors are.