Ok, thanks! Yes, it's definitely a built stroker with some cam giving it a bit of a lopey idle. I don't have the cam specs off top of my head. I had engine built by professional shop. Makes sense, while in gear. Didn't cross my mind. Thanks.

p.s. My invoice only shows "Muscle Motors custom hydraulic roller cam". No specs. I guess it was part of their secret recipe. The valve train is Comp and Crane. KB pistons, balanced Scat crank and Rods, lots of Milodon parts elsewhere (oil pan, water pump, thermostat), edelbrock air gap intake.