Re: 1960 Starliner
Not the best on electrics , I always had auto sparks whose those jobs were left to . In Europe we were still + ground till about 1967 , usually behind the States . So worth double checking battery polarity . Had to rack the old brain , so long ago when last hot wired a older car and not sure of set up on that car . As jwko suggests , take a live feed directly from battery to coil which will give you ignition and then bridge the solenoid if fitted , or starter direct to crank engine .
If it has an alternator , almost certain it is got to be negative ground .
Never, never, never give up.