Fuel or air prob. Check MAF- mass air flow sensor on air intake if 1990 or newer. Main jet on carb if older-rebuild carb. Also oxygen sensor on exhaust just past manifold. Also EGR valve - clean with brake cleaner. Vacuum leak not advancing ignition maybe - check with engine running spray starting fluid around vacuum line connections aee if engine revvs. There's one line under carb that connects to engine that gets heat-damaged
SOURCE: bogs down when i accelerate
Make sure your injectors are all working i had a s10 with two injectors and one was not working right and it bogged down. And fuel pressure can cause this.
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