Been away for a while. Car in storage nice and warm. 440 at machine shop getting worked on. The engine builder asked me about exhaust. I told him that in anticipation of a big block, I had a 2.5" dual exhaust with crossover pipe installed with 40 Series Flowmaster mufflers, which currently sit behind a stock 318. Now my 440 build is mild, only going for around 350hp, with the 452 heads, and a final compression of 9.5-1. I don't own a set of b-body RB exhaust manifolds, and have been told that non HP manifolds are pretty useless. The HP units are very expensive and hard to find. So for my 1970 Plymouth Satellite, 727, 3.55 geared car with power steering, which headers should I be looking at? Doug's or TTi? Thanks all, as usual.