Spark advance?

[Longshot270]

Originally Posted by tmsbandman

Perfect. That's what I needed to know. So, do you think I'm ok at 1.25?

Without sitting in your truck I can't say for sure. I will say that if you were to carry that 1.25 to the level 2 or 3 tunes, you'd probably be asking for trouble. Basically you are only adding timing to the stock engine tuning.

I should add things like cam timing are modified in the other tunes, which is why you can't drop the ignition timing to run low octane on a high octane tune.

Your mixed driving looks pretty good. I have a spread sheet with a weighted average for mileage. I'm currently sitting at 45% city driving with 14.8 mpg on nearly 6000 miles.

Also, do not trust the electronic MPG displays, they all lie. Only use hand written or spreadsheets.