Im looking or a suggestion for a muffler. I am building an 86 f150 with a 393 stroked windsor and a M5R2 5spd. This will be used to pull my car to the track. I am looking for a muffler that will give me the best low end torque. The exhaust will be LTs ran to a set of cats, then ran down the passenger side and both pipes exit at a 45 behind the rear pass tire. I am either looking for a dual muffler set up or a dual in dual out muffler. Piping will be 2 1/2 in.