New here and just starting on my '51 GMC 150. A couple issues: mainly, the guy who installed the rebuilt engine hooked it up as negative ground. It's all original 6V. Any damage from him doing that? I've noticed a couple things. Real hard to start, won't idle well, ammeter shows negative charge. From what i've read in the threads, the coil being wired backwards reduces its effectiveness but other than that, not much harm comes from the negative ground. I'm inclined to switch it back to pos. ground by swapping battery hookup. Anything else i should look for or switch around? (besides improving the grounding system and upsizing cables.) Would the reverse polarity have any effect on rough idle? (plus it bucks and surges a lot in 2nd gear)
