Many of you may remember my quest for help this spring, but have a little more info on my car that may change suggestions on where to go from here. Many felt that my cam was too much for what I had done and that it should be pinging like mad. After installing intake and exhaust from Gessler & adding the 2 1/2" exhaust, it still hardly pings on pump gas. uzzled: Here are engine specs. 70 Olds 455 Turned an balanced factory crank Zeroed the deck 2260+.030 forged alum flat top pistons & 3200 Zero gap rings Double roller timing chain Race cam bearings JM-3-4 cam & lifter kit / (cam specks = Intake 326 lift 230 duration / Exhaust 338 lift 240 duration @.050 / lobe centers 110 ) Installed at zero degree E heads port & polished & 2.072 x 1.680 valves installed Intake by Gessler W/Z Exhaust manifolds by Gessler 2 exhaust Hemi Walker mufflers I have run a compression test on it cold with carb cold & closed and averaged between 215-230. Second test was warmed up with carb open and averaged 228-235 lbs. I currently have a factory Rochester untouched on it. Sooooo, what do you think of the cam now, compression, & what should I do to carb.?
