[Zuriel]

Maybe the freeper ‘Nervous Tick’ has some advice. And maybe not. Lol

I wouldn’t think it to be ignition timing, or it would likely run rough at idle.

These complex engine systems, designed to get another 5-10 mpg, seem to cost more than the old tbi engines when combining repairs and fuel expenses.

2 1/2 hours commute each way? Yow! Get a 379 Pete and make some money with your commute. A logistics broker can find you loads on your route. Lol

[Colorado Doug]

These complex engine systems, designed to get another 5-10 mpg, seem to cost more than the old tbi engines when combining repairs and fuel expenses.

Hey, if you want economy, ya gotta pay for it.