I have been working on this problem for about 3 weeks now. I already tested the neutral safety switch that is fine. I get power to the starter solenoid side. All the starter does is a very low click. The starter and solenoid have already been tested. I woked with a diagram that Denny W sent me and everything is correct. Help!!!!!!

It's a 350 chevy with a th350.Ron Francis wiring and MSD ignition box and distributor.