Wiring Issues!!!!!

1ST. Is there any reason that the engine wouldn't start with the instrument cluster removed? (1967 barracuda)

2ND. I hate when people "farmer fix" stuff. I have wires spliced into wires spliced into wires in the engine bay. I have a wiring diagram but when all the wire colors are black it makes it tough. So could anybody send me a pic of the dist., coil and alternator wiring.

Thanks Chris