Thumper

Yep. Great for a 340/360 but pretty radical for a 318 and forget about a 273. LOL
There's a member on here I think it's rocket. He runs a 292 mopar purple cam in a 318 and he loves it! Not too sure of his set up. I put one in my 360. Don't know yet how it runs. Still need to break in. Dart Sport 360 and 3.91's out back.