I'm wondering what size carburetor to use on a 495 CI stroker? I used the 440 Source kit. Stealth heads, I had the 10 degree locks installed. A Comp Cam xtreme energy high lift .545 cam with duration at .050" of 241 on the intake and 247 on the exhaust. Indy dual plane intake. I'm planing on using TTI exhaust but unsure whether to use the 1 7/8" or 2". Suggestions on the Carburetor; type and size, and the header size will be greatly appreciated.