Well Here's the problem I think my engine's had it. Im getting very little compression and dont know why I checked all the vac lines adjusted the carb about 10 times. I just dont know whats wrong. I finally get my blazer street legal again and now she wont run good at all. O yea and I just changed the spark plugs,wire,coil,and the distributer checks out ok. What do I do. HELP I WANNA TAKE THIS TRUCK OUT AGAIN!!!