1991 s10 blazer is acting up. When I drive it, it feels like it misses. I checked to make sure I am getting spark to the coil and its fine. The injectors look like they are spraying fine. I have replaced the spark plugs and made sure the gaps are right, I also changed the TPS. We swapped the throttle body with the same trucj (my bro has one) and it ran just fine. I want to know what else we might need to fix or what the problem is. Help please!!

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