318 Mopar vs. 340 Mopar

goat boy, i have a 340, i was originally getting a deal, engine and trans for $1200. i had to do 1000$ in machine work. if i had to do another one, i would build the nastiest 318. just because thats the kinda guy i am. and having 450hp out of a 318 would be sweet. but youd be spending money their too. the small blocks just fit better than the big blocks as far as making things fit in and around components. if you want headers and such.