Stop in for a cup of coffee

Ddaddy said

Yeah, I have been in discussions with my Speed Shop guy to put a 2.5” MagnaFlow fully welded dual system on it. It definitely needs better flow and he agrees. It is restricting the power as it is now. Might do another H pipe, but not sure it really needs it. I’m not racing it and the cam isn’t as radical as it was in the original crate engine since I replaced it.

Probably in the Spring, if not sooner. It depends on his Shop schedule.

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I'll say it looks like it was done pretty nicely.
The resistance inside most mufflers is far more than in the plain tubing. If he can change just the mufflers to 2.5 in/out that would be just as good. The transition up into the muffler should be pretty easy. The difficult part IMO is the transition to the tail pipes. The near 90 degree bend right after the exit seems to be a flow killer depending on how it is done.

We reused the 2 1/4 out from Accurate when I switched to the 2 1/2" out Magnaflows. I think its bad enough turn that it may be affecting more than just top end, but certainly not good for 1/4 mile or road courses. Fugly.

I've got a lightly used set of mandrel bent TTI 2 1/2" tailpipes, but they will require cutting and welding to fit. TTI bends the pipes assuming the mufflers hang from the seatbelt bolt locations (IIRC). No idea why, but they do. On a '67 they exit too far inboard, so more cutting and fabricating for me. But for '68 and up, I think that's factory location.