That's an offshore-made copy of a Holley 2 barrel that was used on various sizes of Ford V8 engines in the 1960's and 70's. It's far too big for your application, and probably calibrated for an engine a few cubic inches bigger than a 292, so it's going to run lean. Expect a lean flat spot on acceleration and possibly backfiring unless you're very gentle on the gas pedal. To adjust the position of the choke plate, loosen (don't remove) the three screws that hold the sheet metal retainer over the black plastic cover and rotate the cover to change the spring tension on the linkage that operates the choke flap. The screw that goes into the plastic bell crank in your photo is used to change the position of the fast idle cam.
Jerry
I loosened those screws this morning and rotated the plastic cover but the carb flap did not move.
Yes, that fast idle cam is what I used to (thinking I was adjusting the choke).
I was told when I bought the truck 15 years ago that it has a Ford Carburetor so that makes sense that it is a Ford intake. The only time it backfires is when I am cruising around 45 MPH and let off of the gas completely, then it sounds like it backfires inside of the manifold not out the exhaust pipe.
It has exhaust pipe leaks (not manifold) so that may affect the back-pressure on the engine too?
