Does not stay running

I have a 1984 Toyota Corolla, its been sitting for a long time and having trouble keeping it running. I did so much work on it and nothing seem to work, I changed the gas tank, fuel pump, rotor and cap, Carb, and put good clean gas. I did found a problem with that 10 amp Engine fuse in that black box on the fire wall in the driver side engine compartment and when I replace it it causes the engine to die and when I don't have it in it stays running. This car has a electrical problem because the battery wear's down after days of using the car. I put a new alternator and its still wearing down the battery. With the New Carb, I had a mech look at it and he did something to the Carb because its running on high idle and cannot bring it down and adjusting the choke does not do anything. I really, really need help on this one, It never had overheated or blew a head gasket. Timing is correct, I don't know.