Quote Originally Posted by Doppelgänger
Eh, i'm going to see how close to 300rwhp on the 2560 once I get a 3" exhaust made, 190 Walbro, dual-feed fuel rail and a retune. After that comes a 2871...then gutting the intake manifold and building a shortblock.
FM and Begi have 3" exhausts now that aren't too expensive. I'd get the Begi manifold before I gut the stock one. It flows much better than I expected. Allowed Thunder to run 405whp on pump.