340,to stroke or not to stroke

SG, if it makes much difference, I'm building a 418 for my Swinger. Stock '71 Thermoquad intake, modified Tquad carb, factory correct exh manifolds, factory air cleaner. It will be a solid roller cam, iron heads, and should be close to 500hp at the crank, on pump fuel. I'm aiming at some FAST type racing, but with real tires. We'll call it FART racing ;). So I too and going for the stock look. Not sound or performance, but look. The best bang for the buck, if you are planning to properly rebuild a stock displacement engine, is to add stroke to it. There is a little more in parts costs, and a couple other machining details to do. But the result for a street or stret/strip car is pure magic. If you havent driven one. Do so before you order parts.