OK. I really screwed up...bad. The worst part is I should know better. In Vera, my 87 D150 I cut out the cats because they were clogged and broken inside and have no O2 sensors, removed the air pump and plugged the rubber portion of the air pump hose with a wooden file handle, it fit beautifully. Then I managed to light a fire in the engine compartment.. while welding the pipes back in place I lit my Chiltons manual on fire and melted the vacuum lines and the charcoal canister. So, I plugged all the vacuum ports on the carb and she fired right up. However it won't go up a hill, it bucks and slams hard under a uphill load at any speed, except in first gear. I can however drive peacefully down a flat road and the engine is smooth as glass. I found a new set of lines at the junk yard and put them back in place which made no difference. I tested for leaks with a propane torch and found nothing. What could it be? Should I put a new carb on it without 5,000 vacuum ports? Is it something stupid I'm missing? Help! Considering moving from the mountains to Iowa. Thanks.
