I'm a 15 year old and I got my first car a little over a month ago. It has a chevy 250 in it. I've been thinking about putting in a few different performance upgrades but I want to run it by some people who know more than me. Here they are...

Intake - http://www.summitracing.com/parts/OFY-5416/?rtype=7
4 Barrel Carb - Some Holley Carb. Probably a 390cfm. You guys think it could take any more cfm if I used a performance cam (the next thing on this list?)
Performance Cam - Either a 268 or a 280. Which one do you guys think I should use?
Headers - http://www.summitracing.com/parts/BIG-11510FLT/

And a couple other ideas I had were... a 292 crank because I heard somewhere that you could mod the block to use a 292 crank in a 250 block (what would that involve?). Maybe a 194 head for higher compression. and installing lump ports (what would that do?)

Any of your ideas or helpful hints would be great. Thanks

69 Buick Special Deluxe. Intercooled Turbo Chevy 250 @ 15psi on a stock long block. It's kinda fast.