We recently purchased our 2nd motor home,an upgrade from our 85 Pace Arrow. its a 96 Fleetwood Bounder 36S of a Ford F53 with a 460. its in great shape, runs & dries good, my biggest complaint is lack...
A full dual exhaust won't pass any emission inspection for those of us who are under those regs. I installed a CARB legal system of headers and single large exhaust system and it made a huge difference in the power of my 460 F53. The stock 460 manifolds are the main point of restriction so any improvement there releases the beast within. And yes, Flowmaster mufflers are LOUD. Magnaflows at a bit more civilized.