I need a little help. My buddy and I are working on my project truck 1987 RAM50 2.0- a.k.a "The HEMORRHOID"
When I bought the truck last year it ran like crap, the carb leaked and it couldn't go over 45 mph. We managed to get the Weber carb swap done and got it running. But it's still running like poop. It runs well at idle and at half throttle, but at WOT it bogs and seems to have forgotten it has a set of nuts.
All joking aside. We have tuned the carb 6 ways to sunday and I can confidently say its not a carb issue. We advanced the timing (all the way) and it seemed to get rid of the pinging sound but it still bogs at WOT and needs 3 miles to get to 45mph. We turned/advanced the distributor 1 tooth and it was too much (backfire and running rough) so we turned it back a tooth. It has good pickup at low RPM's but still chugs in the high range and "diesels" when you shut her down.
We checked the distributor advance mechanism with a vacuum pump/gauge and the timing advanced like it should under vacuum. Incidentally, there are 2 vacuum lines from the vacuum advance that I T'd into 1 line that hooks up to the Weber, is that the right way to do it?
We checked for vacuum leaks and found none. The only thing we can think of is the timing belt jumped a tooth.....
Anyone have any ideas on what we could be causing this?