I can also speak for the quality of Engle-s camshafts. The centerline was right on, and the grind was as ordered. For a 440 with this setup, I would back off the duration a bit, to say about 286/300 gross duration, with a .050" lift duration between 220 and 230 degrees. The lift should stay at about .500", as this will make the cam idle smoother, with gobs of power in the midrange, and a decent top end. Talk to the tech reps at Engle, and they will help you, really. The most important thing to remember is with stock valve sizes, the Chrysler bigblock likes a split pattern, with about 16 degrees of difference in the duration. With a bigger exhaust valve, a single pattern becomes more acceptable. This means that an engine with the 2.08"/1.74" valves, it wants a split pattern; with a 2.08"/1.81" (or 1.88"), the cam can be a single pattern, with no loss of horsepower or torque. When the valves become 2.19"/1.81" (or 1.88"), the cam wants to be a split pattern again. Another thing to keep in mind, is that Engle knows that the big lifters used in our engines can take a faster acceleration ramp, and a faster deceleration ramp, thus making more cylinder pressure for any given duration. Never accept Chevy lobes on your MOPAR cam.
