In case there's any doubters re: grounding.

[Longhorn Man]

Originally Posted by jgrh64

I have had many old vehicles(rust belt) and if you don't like the look of valve cover to firewall then please run it somewhere else, I had a cable shifter melt because of a bad ground here(power flowed through cable for ground), others had slow starting issues -you need battery to frame, to engine, to firewall (body),to core support, to bed

You missed where I said the engine gets grounded to the frame. Aesthetically there is much better ways of doing it, and ways that won't have you cussing when you go to remove a valve cover.
I go overboard on gounds. On my longhorn, (daul batterys) I have one battery grounded to the frame, the other one directly to the block. I have always felt that hooking it to an Alt bracket was half assing it (GM's 70's idea). Then the block is grounded to the frame, the core support is grounded to the frame with a fairly massive braided strap, the cab and bed are both grounded to the frame, a strap on the frame, and a 1/0 cable on the bed. I have NEVER had a ground problem on any of my trucks after I go in and ground them the way I want them done.
When I was a teen, I had an 81 Citation crap box, and the lights and wipers and everything would dim at an idle and upon deceleration. I knew the idle dimming wasn't too much to worry about, but the deceleration dimming seemed odd. I then realized that sitting in neutral with my foot off the clutch, that reving it did nothing to produce more power. I later discovered that my engine to body small straps had been left out, and it was grounding the whole car through the clutch cable. I saw it arching one night when i had the hood up do give my dad a jump. I had that car for about a year, and my dad had if for 3 or 4 years prior, and it had ALWAYS done the dimming thing. I ran a wire, and all problems were gone. My old man felt like a tool, and his so-called mechanic buddy looked like a retard since he charged my dad like 5 hrs labor and still come up empty handed as to why the car did this.