360 cam

IIRC the factory 360 2bbl cam is a 252/260/112. In at 108 the ICA is 54*, and this with an 8.0, 360 will get you a Dcr of about 6.9@132psi and a VP of 120 ..This is about as low a pressure as you wanna run. And the overlap would be 32 Degrees.

Well, you could grab a Comp 262/270 cam and have those lobes put on with a 104LSA. and install it with the same ICA of 54 degrees, to get overlap of 58*; not up to the Thumpr's 73.5, and not nearly as lumpy....... but your compression and power events won't change much.
But you will have more specific power, at about 300/400 rpm higher and not suffer the driveability issues.So your gonna need new springs.
IMO, this is a reasonable solution, if you are just after the sound.
That 279/296/107 Thumpr cam will reduce your low-rpm performance about 12%. Just to get back to where you are at, you will have to rev the engine higher to find 12% more power. That means a New TC and more money
With the 262/104 cam, you could leave the combo alone. And the fuel mileage at steady-state will not change much either. Whereas that Thumpr will suck gas big-time.