well the problem is when it snows the car seems to lose all power for some reason when snow sits on it over night and this is the only time it loses power never when it rains or real cold night,just when snow sits on it over night.car is a 85 berlinetta 305 and has a new starter,alt,battery with new negative and positive post wires and teminals.car starts and runs great onces it has power again anythoughts on whats wrong?ever happen to you?thanks in advanced

 

If it were me I'd try putting a tarp over it when It's going to snow, see if that makes a difference, try to isolate the problem, sounds like a moisture issue, maybe by covering it you can prevent any moisture/freezing issue, worth a try.