I know it's not a radical cam profile, but it is the stock cam and that's fine as it is a street cruiser. But it's embarrasing to hit the gas pedal and the car doesn't do more than my Durango can do with an extra ton of weight and a 4.7L with gearing in the low 3s. Something isn't quite right, but I'm not sure where to start. The engine is stock except for rebuilt carb with correct numbers, is missing the original snorkel air cleaner and preheater tube and wears an open element chrome cleaner now, and is loaded with ps, pb, air. I'm not looking for a 12 second quarter mile car, but 16 second class would be nice! The emissions equipment (3 port TVS, PCV valve) are intact and connected. An open element valve cover breather cap is installed as the air cleaner has no provision for the tube.

Off the line, the first-second shift comes late on full throttle acceleration but fine under normal acceleration. There is no bog, but rather a slow buildup of speed until about 40 miles per hour, at which time the car begins to accelerate very well and will hit 65 quickly. Second-third shift is fine. Any acceleration from a steady cruise to full-throttle has the same gradual buildup of speed, then a rapid transition to real acceleration.

I installed a fresh paper fuel filter last week with no improvement. When doing so, the car had been parked overnight. I loosened the fuel line fitting and had a rag in place to collect the spilled gas. No gas leaked; the line was dry. When starting, two pumps of the pedal are needed while cranking to provide startup fuel and set the choke. Related problem, or different? Any suggestions?