I got a problem , not in a blazer but this forum is my last hope! I have a 1985 caddy that has a 307 oldsmobile motor in it. It is set up just like a chevy so I figured you guys could help. Problem is the motor won't reve above 3000 rpm! It just bogs down! We brought the car many places and they all had different things to say about it. I already have rebuilt the carb on it this morning and it is getting proper fuel. I need this thing to get ot work in the morning cause my Father has my truck. If I can't get it fixed I am screwed! Has anyone had a problem like this. I am begining to think it is an ignition problem. Can an ignition module cause this problem. Any info anyone can offer is beyond greatly appricated. Thanks in advance. Mike You call that dirty!?