oldman2, just a couple of thoughts....

If you're planning on buzzing the motor to 6,500, you're gonna need more cam like Erik said. Why do you want to rev that high anyway? And why do you want to run 10.8 c.r.? You already know it's gonna be a pain in the ass. If you research the back of the can on the octane booster products, you'll find that "1 point" actually means 1/10th point. That crap is worthless. Another thing, you might think you're gonna be able to run a stock converter with that cam, but I think you have a rude awakening coming. It's gonna be another pain in the ass and you'll have to stand on the brakes at stoplights. Also, you'll most likely have to find another way to make manifold vacuum if you're using power brakes.

I suggest that if you want a performance motor, start with a bigger motor so you won't have to compromise so much on your build.