Roller cam suggestions?

The only answer I can give for that is one that I think is B.S. for starters...and enders.
You pay for performance. Thats what they tell me.
I'd call one of the cam companys up and ask for some help on a roller with some thump on the exhaust sound. You'll need your gear ratio and tire size (Diameter) and any changes on the engine. Also car wieght, and any converter/tranny changes and up grades. Let'em know everything for best possible result.