Im having some problems my 89 firebird . It has a TPI 350 in it the last time i took it out it killed when i pulled in the drive way and hasent cranked since. I was having trouble with it surging while idaling the RPM's would go up and down but now im not getting power to the fuel pump and no fire to the motor. What could cause all this to happen at one time? The motor still spins over fine . Thanks for any help.

 

Sounds like it could be the ign switch. Here some wire diag to help troubleshoot.