not sure about your situation but Pontiac stock heads won't take high lift cams, which sounds like what you have,, RAI & III style, 068 cam etc yes, but something like a RAII or IV, no, the factory used different heads with different springs, your push rods should be bent too if this is the case, Crane makes what they call Blueprint cams which are indentical to the factory, the 068 or 744 cams are great cams
So what cam then was in the 1969 350 H.O. automatic .. the 068 ? I have the cast 48 heads and matching intake and carb,, and also the ram air exhaust manifolds.
Yes, the 350HO used the 068 cam. unless it was auto
found this on hemmings--
Differentiating the 350 H.O. from its base two-barrel counterpart, however, was–first and foremost–its four-barrel intake and corresponding 750-cfm Rochester Quadrajet, as well as a dual exhaust system. Less perceptible visually was the change in cylinder head design, the ’69 edition making use of “#48†heads (a reference to its casting code) with enlarged 2.11/1.77-inch intake/exhaust valves. Also referred to as “big-valve heads,†the D-port units feature 66-cc chambers and are the same as those bolted to the manual-shift Firebird 400 (335 hp) and the manual-shift GTO and Ram Air III engines. On the 350 H.O. engine, they contributed to a 10.5:1 compression ratio.
Complementing the fuel delivery and breathing components was a hotter camshaft. Engineers fitted two different cam profiles depending upon transmission selection. Owners who preferred to retain a manual received what has become known as the “068†cam, with its .414/.413-inch intake/exhaust lift and 288/302 degrees of duration. An automatic transmission meant the “067†cam was installed, it’s profile being .410/.413-inch intake/exhaust lift with 273/289 degrees duration. These same cam profiles were utilized in select Firebird 400 and GTO engines. Regardless of which camshaft is inserted, the collaborative effort yielded an official output of 325 hp and 380-lb.ft. of torque. No other engine was offered in the Firebird H.O.
and on a lighter note, these were 14 sec cars with standard gears and cheapo bias ply or polyglas tires that had no traction and went up in smoke like most cars of the day