what a difference
 

wow I was in a rush when putting 350 in my nova and for past two months wondering why not much power ..........well forgot to ground the engine out and didnt have a good ground on the battery.....crazy difference......1st 2nd and 3rd gear burnout in my driveway....nothing but smiles :D

sounds like your old fuel ran threw about the same time you added a ground...thats a weird one,thats a first ive heard this making the car lose that kind of power,i may want to add one to my car,as i dont have one...i have one from the frame to the body,but none from the engine to the body...

yeah I had my negative cable from my battery just on top of the fan shroud and nothing for my engine ground......all I know is there is no more breaking up starts up easier and runs out like crazy