Its a very torquey cam.. Drivability is very, very, good with this cam. Lots of down low torque, and strong mid-range.
I have the .520 cam, so have a look at my dyno graph.. This is with stock sized valves, light port and polish on the heads, an S-model, 10% MP plenum and stock exhaust manifolds.
Nearly 350 rwtq available at 1,800 rpm.. Torque curve is nice and flat, horsepower rises at nearly a 45* angle.. A picture perfect curve..
I have yet to dyno since the Magnaport blower, SCP mid-length headers, and true dual 2.5" exhaust.. I'm expecting 360rwhp ish..
The cam also is pretty happy with the stock chip, which is rare for some aftermarket cams.
Gas mileage is not too bad.. I see about 13.5-14 around town in my '92 5 speed with the more than occasional WOT session
Its too bad he had so many problems getting these cams done in a timely manner, because its a damn good cam.. I firmly belive that cam is the reason I'm dynoing higher than many CMRE Stage II engines, even with the small valves..
Jeramie