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

Aww yeah the old 2.2's

Well I did a quick internet search 400hp 318 and behold one of the mopar magazines did a 400hp 318. The recipe kb pistons, comp 280h cam and magnum heads with a mopar performance dual plane intake 400hp at 6,200. Factory crank and rods stock magnum heads. I think for that combo there are better options then the chevy 280h grind though