tinman

Any of the striaght thru type mufflers.
The ones I used were the oid Douglas things, dunno if you can even buy them ant more.
I would use both sides of the EVAC system or not even mess with them....

uedlose

I am having room issues with the tall valve covers and the Holley upper intake even with the spacer. I also only run one exhaust pipe down. I will move over to running 2 if I have to but I will have to get new valve covers the way it looks. I will need to fine something shorter but they will need to still clear the rocker arms. I know they are out there I just like my tall Ford motorsport ones LOL. It will all come together it is just time and money no big deal. Thinking also this time of running just one 3.5 pipe and not getting hung up on having to have duals. LOL I run straight through muffles any way. I went away from the chamber stuff years ago.

mjr46

glasspacks??? lol