Basic 318 Mods

If you look at a stock 318 dyno chart it may peak at 4500 rpm but it practically flat from 3500-5000+ rpm’s with a small bump at 4500 rpm’s. Imagine exhaust, 4bbl adds through out that whole range and lower so you don’t have to wait to 4500 rpm’s before you get into the power (lol) of the engine.
Even at 2500-3000+ rpm’s it down a good bit but still not too far off peak hp.