Still issues with the car not starting!

Thanks everyone for all the input please keep the info coming. I should of been more specific for that I'm sorry. The car is a real 4 speed 1967 BB Cuda. It doesn't have a neutral safety switch. I'm thinking that if the starter relay was able to be jumped and the starter fired up the motor than possibly solenoid on the starter or could it be the starter relay that is brand new? How do I determine if the ignition may have a short because when turned to the start position it may not be engaging the solenoid and starter?