On level ground, top off the radiator with water, and put the cap on tight. Then start it. The idea of leaving the cap off is only for when the entire system has been drained, and you need to wait for the t-stat to open to finish filling the system. You should be fine by toppingh off the radiator, ON LEVEL GROUND! Have fun!
Take care
~Chris
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RACECAR spelled backwards is RACECAR
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