Today, dollar for dollar, is the 318 faster than the 340 ???

Here are some fun numbers
500÷350= 1.43 hp per ci
600÷418= 1.435 hp per ci
400÷318= 1.26 hp per ci
400÷340= 1.18 hp per ci
390÷345= 1.13 hp per ci

Factory v-8 engines have been making over a hp per ci for along time. And 600hp 418 stroker's have been verified. 390hp 345 Hemi's out of the factory in ram trucks