Rookie needs electrical help/advice

[co-necked]

Hello everyone, I'm new to the board. I am looking for some electrical help. I have started to work on my Grandpa's old truck that's now mine. I put on a intake, new carb, dual exhaust, fuel pump, water pump, radiator, etc...(still looking for some headers though, any suggestions for a 3 on the tree would be greatly appreciated) Now I want to hear her and drive her, but the main wire from the harness going to the coil (+) keeps frying up. I don't know if the electric choke has anything to do with it. (was two connections on +, now 3) Don't know much, looking for help. Thanks