Based on my timeslips and weight, (3,200 w. me in it) my street machine Duster 340 with unported W2 2.08 heads, Victor intake, .557 purple cam and 750 double pumper puts out a little over 400, maybe 415-425 on a good day? Figuring for 20% driveline loss I think I'm getting around 320-325 at the wheels.

Mine idles around 1,000-1,100 rpm with about 7" of vacuum. Timing is 20 degrees initial and 36 total all in around 1,800 rpm. I shift it at 6,800 and last time I was at the track it went over 7,200 a few times. Lash is .026" intake and .028" exhaust hot.

Cranking compression is around 180 psi so I think it's around 10.5:1? Not sure, have not had the heads off. It was built by someone else before I got the car.

Could it be making more or less? I don't know. There's basically no torque off the line. It likes fuel too. It needs a better converter (currently 10" 3,800 stall) and more gear than the 4.10 that's in it now. Porting the heads would greatly help too. Probably could use a camshaft upgrade also but then I'm starting to get away from practical street territory. It's pretty high strung now as it is.


'71 Duster
'72 Challenger
'17 Ram 1500