Finally, the Thumpr is in the 350 and I have the 34 fired after much frustration with the new chrome Weiand intake manifold. Part of the problem is the tight fit of everything under the hood, but Weiand moved some ports around on this new manifold, causing me mucho grief getting the heater hose and temp sending unit fittings to clear the AC condensor and the alternator. I think I now have half a hardware store on my garage floor. Got the big thump I wanted, but having run-on when turning it off. Have some more tuning to do, and hopefully that will solve that problem.