I'm going to get "Roasted " for this I know !! 400 thoughts ?

OOOOK . Back story first. I have 69 Dart that I've had for far to long ( last drove is in 1999)
the car has been apart forever and now I'm trying to put it back together for next year .
like many of us I'm on a Budget and funds are tight .
I have a 73-400 that I'm thinking of using for a yr / 2 to get the car moving and work the bugs out. I want the car to have a great sounding idle (rough) Its going to be a stock 400 with 906 heads/cam/ headers 4:10 Dana and 3500 stall convertor .
I wish the 400 had more compression but they dont.
I'm thinking abut the Comp cams CL21-602-5 Thumpr cam ( 507/494 ) do I have enough piston clearance ??
I know its not going to be a great combination for this set up but If I'm being honest im more interested in the " sound " of the car then the performance ( for next year) future plans call for a 400 something stroker but because I have the rest of the car to reassemble its not in the budget for next summer and I'm tired of the car sitting.

thoughts?

I think it's a great idea! That's what the Thumpr cams are made for. You have plenty of piston to valve clearance. Go for it! It'll sound nasty and with the converter and gears, it'll run nasty. Do it.