I recently did some engine work and when I took it out for a test drive I floated a valve. It is a 396 with stock lower end and a Lunati cam 235/525. I just had a valve job done on the stock 2.06/1.72 heads. I also put in new springs, hyd lifters, roller tip rockers, and put a Performer RPM manifold on it. This was the first time I tried to adjust valves and I'm hoping I just had one to loose. I was at about 5200 rpms when it went. Is this what happened or is there some other problem? The springs are correct for the cam and the shop set the spring pressure.
Also, since I have the manifold off (had to find a lifter) what is the correct way to adjust the valves. My understanding (after doing it wrong the first time) is to set a valve on the back side of the cam lobe. Tighten it just until there is pressure on the lifter and then turn 1/2 turn. How much pressure do you initially put on the lifter? Should I see it start to depress? thanks for any help...
Also, since I have the manifold off (had to find a lifter) what is the correct way to adjust the valves. My understanding (after doing it wrong the first time) is to set a valve on the back side of the cam lobe. Tighten it just until there is pressure on the lifter and then turn 1/2 turn. How much pressure do you initially put on the lifter? Should I see it start to depress? thanks for any help...