66 exhaust routing

[Agv63]

I have a 455 pontiac in my 63, 2.5" pipes and going outside of the frame, one straight thru big size glass packed muffler, and dumps about 6" before the rear wheels, it is actually not loud, good sound just sounds a bit wonky as i must still add a crossover tube.
Could run it the same and add more mufflers or just extend pipes on outside of frame. Depending your wheel size it should fit. Will add some pics i took from internet.. not my truck but neatly done.

Cheers.
Adriaan.