89 TBI 350 stumbling around cruise

[89S10_Project]

Pretty sure I mentioned I'd rebuilt the TBI unit. I may be mistaken. At any rate, I agree with you, and have done it.

I have another TBI unit that I will mod for JIC connections, a Fuel Pressure Gauge right at the back of the unit, etc. Of course I will tank it and rebuild it thoroughly while I'm at it.

As I purchased that Toyota I referred to in the past, I can now afford to take the Blazer down and do it up right. One of the big things I need to do is build new axles- the gearing is all wrong in these.

[gapman]

I just fought this exact problem for a few months. Finally I decided after much prodding from a buddy to pull the plugs. First one out was cracked badly on the insulator. I even remember installing it and hearing a funny noise. It’s worth a check. My problem started right after the plug change, I just refused to check them.