318 performance

I know since you already have the 318 in the car its easy to work with, but if you have the tools an the means, with a $1200 budget i'd go a different route. I would look for a moderate low mileage 360 prob j/y motor and take all the goodies from the 318 and throw it on the 360. I've seen numerous 360's for sale on craigslist and ebay that were pulled running for $300 - $ 600 bucks. Then I would buy some cheap long tubes from summit ($105) and the dual exhaust setup ($205) and throw them on when you put the 360 in. You would come out way on top than if you were to have buy heads and do all the headwork nessasary to bump that 318 in compression and power. Just kinda my own opinion with the budget you've given. However some people want to build the 318's just to do so and suprise people which is also very cool to say your getting alot of power out of a 318.