Quote Originally Posted by Fast355 View Post
I think it gets 8-10 towing. He told me he towed a travel trailer at 90 not too long ago. So he tends to have a pretty heavy foot.
hope he has a away control hitch.

I was hoping to throw a set of headers on mine when I overhaul. Most of the ones I see say they fit pre 91 trucks. Any idea what actually fits the chasis?
I know, kinda off topic.

Anyways with closed loop active, I seem to be running a lot better, trims are real close. A few wash rinse repeat cycles and I should be moving on to timing. Only thing I seem to have as I turn cl on, is a slight hesitation from off idle. Seems to all but went away now though.

Does he run any lean cruise, or all closed loop? If you know.

Thanks ��