[DaleO]

Originally Posted by Jay S

I could work backwards and get a close SCR ratio. Need a little more info though, first are those pumping numbers with the engine hot? 2nd what is your elevation. Hot, (no choke flap to hold open), kept a battery charger on it to maintain the crank speed, 500 ft, basically sea level.

Is it log exh manifolds and a stock tq converter? If those are stock yet I would not consider a cam swap. There would be some considerable gains if those two things aren’t stock with a cam swap though. Hooker headers, 3" collector back to Dr. Gas crossover, 2 1/2 inch outlet through Dynomax mufflers and Torque Tech tailpipes. It is a TSP 9.5 inch which brake stalls at 2,500 and flashes at ~2,700/2,800.

From what I recall Engle rates the seat timing for there cams differently. I am totally sure, but IRC, it is rated at .008” tappet. Engle grinds pretty nice cams, that cam is a pretty decent street cruiser. Bigger rocker ratios on the cam you have would work better with those head flows and that cam, has the intake pushrod tunnel been ground on for bigger rockers?

It has Harland Sharp 1.5 but I wasn't smart enough at the time to have the pushrod tunnels opened. I can't comment on the seat timing, I'm looking at the catalog for it and it is not indicated. It actually is a pretty good setup for the way I drive it. I'm not interested in the jagged edge or even turning 5,500 let alone more, 5,200 would be good for me. I don't want to wreck the street manners but I think the TQ will buy me a little anyway. Rhoads are perfectly fine for me too.