[BB427]

Misfit, I have a single Holley 4150 that has been reworked by Willy's Carb Shop . The camshaft I have is .605 lift on 110 centerline with 294 adv. duration, 248 @ .050. The ramp is mild and it doesn't require alot of spring pressure (125lbs. closed and 315 open) It has a rough idle but it is comfortable at 700-800 rpm. The first cam I put in this motor was .650 lift and 255/262 @ .050 on 112 centerline. I HATED IT. It was a dog until 5000 rpm. Not the street manors I was looking for. Opinions vary. Someone else may have this cam and love it in a street car.

Good luck