just rebuilt runs bad

try not to forget when he cuts the valve then the stem to get his assembled height then the depth he cuts the seat, even if he doesn't cut the heads all of that needs to be equal and very few machinists will find the lowest seat to determine what will make the engine balanced, they will simply cut a seat to clean it up and assemble it with no clue because a chevy has adjustable rockers, that valve will need a shim under the spring to get the seat pressure that the other cylinders don't need, hell look for assembled height and spring tension at assembled height and send em out the door, mopars were built diffrent and the training they got rebuilding them was exceptional I'll put a stock 340 against any 350 chevy any day of the week because of that simple valvetrain knowledge, everyone that plays with engines should know about the process involved with doing a valve job and the process of doing it correctly would be the "advanced" course, so lets try to understand I was not putting anybody down for going after the ignition system to be the culprit when the engine was rebuilt and that I had admitted it is easy for some to get 5 and 7 plug wires mixed up ok, i'm sharing what I know and that is all...if there is a flaw in what I have said please feel free to point it out without referring to anyones panties some of the ladies reading this thread may be offended

JoeDust451 said

Don't need to get your panties in a wod, there just opinions, no need trashing others opinion just because your trying to get your point across.

Could it be the vavletrain, sure it can, but do you realize how much preload would be needed on a hyd. lifter to keep a valve hung open, a good .080", I'm sure the machinest isn't a total idiot that he didn't know it had fixed rocker shafts, the cam isn't that big, so the only way it would start hanging valves is if the heads were milled a ton or the block was decked quit abit.

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