is Don's the guy with the class C camper in the swap meet end of the aisle every year?
I think so, anyway, I got one for my 68 Roadrunner and it was not a great fit...
I am using repo exaust manifolds, but the distance between the manifolds was about an inch off and the back end of the pipes where the mufflers mount was off a few inches to one side.
Had to pull out the hot wrench and massage it to get it to fit.. one side was hitting the driveshaft and the other was pointing outward.