What would cause 3d to run very rich above idle that cause a rich bog. Starts great and idles well. Above 1/4 throttle motor bogs and smokes a lot on trailer on water hose. Lots of blow back out of throttle bodies. Runs a little better with backfire screen taken out but lots of fuel blowing out with screen taken out. Plugs are wet when taken out. Timing has been checked and good at rotary valve. Good spark on both plugs. Compression 150psi both cylinders. New battery and regulator charging good. Tried different ecu and vcm runs the same. Original injector cleaned and tested good. Tried another set of used injectors out of running 3d and runs the same. Fuel pressure 57psi. New Throttle position sensor and reset. The problem is just to much fuel based on plugs and exhaust smoke. If 3d had a carb I would drop needle and put in smaller main jets. I posted last summer about same problem but still have not figured out problem. Had 3d at 2 dealer both can not figure out what is wrong. Thanks for any help.
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