I had them all beat on the line.. The truck just wasn't very consistent.. went from 19.17 to 18.95 throughout the day. Same shift points..etc.. grrr

Had to use the brakes on one pass as i had him so covered... imagine hitting the brakes at 65MPH against a guy to make sure I don't break out...LOL

Anyways... this brings me to another point.

On the last pass, 18.95 pass, my air fuel gauge quit (bad ground) which is hooked to my 02 sensor. I didn't think it should do this, but without a proper ground on the Gauge, the "Check Engine Light" came on. I saw the light in the staging lanes but figured out the issue after the pass.

I know the last time my truck had the check engine light on, the mixture went SUPER rich. I'm thinking the truck went faster due to the extra fuel.. make sense??? The air temp and humidity was the same all day so the density altitude did not change and the wind was consistent out of the same direction and speed.

I do know when I cruise, the engine runs in the 15.9 to 16.7 range which seems super lean, but on full throttle gets to 12.0. Maybe not fat enough on full throttle? I would think it should go into the 11's at full throttle rich.

I'm really surprised by this and it's all speculation.

Certainly the lack of a cat is worth a ton of power in this little engine. I wish I would have had a chance to finish my ported head for it.