I just installed a maxi fuse distribution block in my 77 280z and now I just get a moan when the key gets to the start position. I've taken it back apart and double checked the connections. 4 gauge in from + starter, 4 out. Alternator circuit with 80 amp fuse and the rest 50 amp. I was chasing down another charging/alternator problem but it was starting very easily prior to this switch. Has anyone seen this before?

Describe this 'moan'.

Does that mean you can hear the starter kickout and engage? or just spin? or are you just hearing the fuel pump start?

I just did the block replacement last month. If you did a wire replacement just like the pictures show, then the problem is more than likely something else.

FYI, all my old battery cables where corroded internally and you wouldn't be able to tell by just looking. Just replaced them all and been good since.

The moan is consistent and I think from the engine bay. Its somewhat louder than what I would expect the fuel pump to be. Its not a clicking or even buzzing like a weak battery connection. I can't hear the starter kickout or even try to engage. The battery still has 12.4 volts.

I found it. The starter solenoid wire was loose.