I just wanted to throw out an update on a couple things.

1. It has been warming up around here a little and it started pinging a little on heavy accel so I topped off the tank with about 5 gals of 93 and that made it quit. It had a mix of 89 and 87 in it. I think I will be useing 93 from here on out.

2. I have only driven strictly in town with this last half tank and it got 19 again.

I finally hooked up a vacume gauge to watch when driving and it's kinda interesting. I can keep the vaccume at 20 inches cruising at 70 on a flat road with no wind. It only pulls 25 idleing in park. I though it would be a little higher idleing and lower cruising. This still leads me to beleive it would love an OD gear. I bet in town it could go over 20 and I could easily knock down 30+ on the highway especially if it was a 5-spd manual OD