What is the better way to got, with the 331 or the 347? I was going to go with the 347 but i just ran into a hell of a deal on a Dss 331 set up. How much more power will you make with the 347. The car is not a daily driver, it is just a weekend and occasional strip car. The rest of my combo will be trick flow tw heads that are ported and flow close to 300 cfm, C4 trans w/4000 stall, street heat intake, anderson b31 cam that i think i'm going to change. What should i do?