I have to move my '51 Chevy from 1 of our tent garages to another, so my dad can put his truck in the 1 my car is in. 2 days ago I put the charger on it ( dead batt, sat since august ) and hooked up my soda bottle temp fuel tank, sprayed some hot start in the carb and tried to start it, it didn't so I checked for spark and got nothing, so I replaced the condensor, and I got it running. but now that it is running, 1 of the front lifters or valves is sticking causing quite the clatter, and it didn't go away after a few minuites running, I shut it off because I'm afraid of flattening out a cam lobe. oil preassure is great at just over 15 PSI at idle. what can I do to unstick what ever is stuck? it used to do the same thing on a rear valve/ lifter before, when it hadn't been fired in a while, but went away within a few minuites, unlike this 1.