I've been having some issues with misfiring in third gear under heavy load and I'm trying to rule out ignition. I have all MSD stuff and have swapped the coil and 6al-btm box to a digital 6 just for fun. Locked billet dis.

I have a battery cable to the accessory bracket, bat cable to strut tower, and a half inch strap from the rear of a head to the firewall. I don't get any resistance with an ohm meter. Should be fine right?

My last run at the track, it was as if I hit a rev limiter. I ran an 11.2 at 114mph. Tach was reading almost 6000 rpm though, which I don't believe to be right. 6000 rpm in 3rd gear with 3.50 gears is over 130 mph.

 

There's slippage in the converter, so the tach could be pretty close.

I'd expect that grounding to be alright.