Hey. . . doing my 318 build on the '74 Swinger. I came across a good deal on some 340 exhaust manifolds and was thinking about using those instead of headers. I also found a good deal on some used TTI's so . . .
what do you guys think? I'm not too worried about maximum performance, ease of install and tune ups are more important but I know how bad the stock 318 manifolds flow. How much better are the 340 exhausts or should I just go with headers? I'm going to run the 2.5 inch Jegs duel exhaust.
Thanks!