I have a engine, 350 small block, that I put together for my truck.It has a 280h Comp Cam Kit,cam,lifters,springs,locks,etc.The engine ran good for about 2500 miles.I pulled it and it has sat for about 3-4 years. I did loosen all the roller rockers though, untill all valves were seated,and then some.So the springs are not really fully compressed ,but holding the valve shut.Are the springs still in good condition after staying in this position after so long?