it is Positive Ground now...i.e. Positive/Red/+ Battery Cable to Starter Terminal...Negative/Black/- Battery Cable to Ground. You said "Negative battery cable to ground". Sounds like it has been converted to negative ground to me. Color of the cable makes no difference.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
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