Holley 4150/4777/650cfm, competition drag racing double pumper carburetor
Holley, 4150/4777/650cfm competition drag racing carburetor, double pumper, mechanical secondary linkage, 4 corner idle, jet extensions with notched secondary nitrophyl float for hard rapid acceleration, tygon seals on the idle mixture screws, choke horn milledto increase airflow to 700+ cfm and have great low end throttle response,was totally disassembled,vibratory cleaned and polished in a filtered soap and water solution, top and bottom of the baseplate is resurfaced, thoroughly gone over, new gasketswith new reusable non stick bowl and metering block gaskets,new accelerator pump diaphragms, new power valve, floats are set, tuningcalibrations are pre-set, fuel inlets are installed and pressure tested, mounting gasket is included, this carb. is totally rebuilt, is in like new condition and ready to install. all parts are polished or plated, no paint or powder coating, This type of carb. is at home on the street or strip, Ships worldwide, This is an actual photo of the carb. #73
