Dare I say it but, Uncle Tony started alot of the "318 can do what a 340 can do" BS...as someone who has done it with a 318 ( stock LA 318 , SUM K 6901 Cam, Headers, 4 barrel and 2.5 " exhaust system) , you only get so much out of them then it's just drinking gas. Which negates what a 318 was designed to do... be a reliable economic utility engine. I am speaking in terms of the LA version from the early 70s, that's what I had. If I had a stock LA 318 in say a pickup truck or any type Mopar really, right now, I'd tune it up good ,rebuild the 2 barrel and maybe put an exhaust system on it and call it done...I think exhaust really helps honestly. Maybe headers ...the "young " guys coming on here contesting that and saying different never drove/ rode in a fast car for real.