I've seen A LOT of posts about making HP with a 318-So why is it so ???

Ok, I will chime in. I have both 318 and 360. I almost put a 360 in my ramcharger, but I had a really nice roller cam 318 with low miles. I did nothing but a stock rebuild and spreadbore. Pistons were .022 in the hole with 302 heads. Real quick port match, cartridge rolled them and valve job. This thing has gone more power than the lower compression 318 2bbl it replaced. Point being, a stock 318 with just a little head work and higher comp made tremendous gain in power and drivability almost to the point I would swear it was a 360.
Same goes for my Duster. It has a .030, 318, pistons. 026" down, .028 HG, heads cut .030, mild potting and a 340 can and that thing is impressive on how strong it runs.
The run of the mill teen, leaves so much on the table and generally weak, so to speak. Teens respond smartly to compression and a good flowing set of small port heads in my opinion.