If I guy had a muscle car era chevy, and he had a 307 core, and a 350 core, I can guarantee you the chevy guys would reccomend the 350 over the 307, for the very same reasons a 360 is generally reccomend over a 318. All engines can be modified to increase performance, but dollar for dollar, the 360 IS superior compared to the 318. And I have built them all
