[Shockwave78]

I just finished rebuilding my w72 400 with a Crower 60240 cam, new lifters, valve springs, rings, and rod bearings, I didn't have any work done at a machine shop as the engine didn't need anything. After break-in, I took the car for a drive and it makes less power than with the stock cam, it can't get out of its own way! I have checked compression, firing order, spark, fuel, and timing and all seems to be as it should be. Compression was at 145-150psi for cylinders 1, 2, 3, and 4. I will be checking the other 4 cylinders after work today, as I just did a quick check on the easily accessible cylinders. Timing is set to 18 degrees btdc. I'm out of ideas as to what could be amiss. A friend of mine suggested that the issue could be the stock non-adjustable valvetrain preventing the valves from operating properly. I did a rough check on the valve lift with a valve cover off cranking the engine and measuring valve movement and came up with ~1/2", which is close to the advertised lift of .422/.446 with the stock rocker arm ratio. It doesn't look like the rockers are binding or otherwise hanging up.

Any help would be greatly appreciated!