390 is running great and has 12,000 miles on it. Pulled plugs this weekend to see how they looked on Ryan's tune. They looked almost new. I regapped them to .055 and installed the Performance Distributor's Screamin' Demon coil. I'll check them in a 1000 miles or so and see how they look then. In the meantime,throttle response seems better.

 

Wow, that does look like it's burning right. Awesome.

Hows your fuel economy? Better? Worse? About the same??

 

Same. Would probably be a bit better if I'd stop amusing the skinny pedal.

 

LOLOL. Yeah, familiar with that problem.

 

Glad it's running so good, I wish it was in my truck!