[Bruce Robles]

Comp probably knows better than anyone, call them. Why reinvent the wheel?? I agree with the rest, call a reputable engine builder who does this everyday and use their expertise. I know you want to do it yourself and you think you'll save money if you do, you won't. What's so important about 8000 rpm??? Are you racing or just having fun?? If you are racing, you need help. If your doing this for fun, get some good advice, get it built, and start driving the thing. You don't seen to be very knowledgable in the basics, i.e.
"will a 351 cam fit in a 302?". There ton's of interchangeable parts that fit both, and there are as many that don't, but look like they will work.
You will wish you never started this project and you'll get disheartend. You won't enjoy it if there are problems.
Have concidered a crate motor from Ford or another source? A good reliable crate engine will add value to your car when you want to sell it.

Good Luck.