Making power out of the 318
My advice to the OP if you are a 15 year old kid, and you build your 318 bottom end with 360 heads you'll lower compression but there are things you can do get pistons that com up to deck height as the 318s sit low and mill the heads... get it to 8.5 or 9 to 1 and run it .don't get too crazy because it gets expensive. that's about as far as Id go and really you need a set of stock 318 heads and a replacement piston and it would run that's the least expensive way to go. 318s are about being cheap not dumping your life savings into them.