Works great. Original solenoid is kept mounted to starter, but wiring from key to coil passes through remote solenoid. The pos. bat. cable is routed from remote solenoid to original solenoid to make loop. I forget some of the wiring particulars b/c it has been a while.
Our application is in a SB Chevy stuffed in Ford Anglia street rod. Original GM solenoid is so close to header we had a hard time starting when engine was hot. Remote Ford solenoid solved problem.