shipping extra if needed . GM 502 crate motor carb . #19172226 , holley # 80714 . appears to be a combo of street avengers #83870 and 80870 - 2 corner idle but down leg boosters . new at summit racing those are almost $500.00 . i set it up using #83870 specs , the take out parts matched those and it didn't look like it had been apart . lookin' low miles - clean , complete and original looking . was told it was a "take off" - customer went EFI . disassembly and inspection , bath n flush , checked gasket surfaces etc , clear coat and bake on the body and bowls , reassembled . has power valve protection and the vac sec "quick lid" for easy spring changes . i mod'd the nozzle screw for a little better flow . quick 10 mile test run on my stockish 360 was good , drained n cleaned , bench tested the vac secondary - good . ------------------------------------ needle n seats - .110 fr jets - 78 rr jets - 82 power valves - fr 4.5 / rr 3.5 pump nozzle - 42 vac sec spring - plain ( i would maybe recommend a purple spring after test drive if needed) pump cam - green #290 fr metering block - 11981 rr metering block - 11697 above all appear to be oem 83870 spec parts . not 100% sure on the pump cam . ------------------------------------ floats and throttle blades set at oem spec idle screws set at 1.0 full turns out as a start up point 5.5 - 6.5 lbs fuel pressure per holley tech i recommend non ethanol fuel and/or an additive like seafoam , stabil etc ------------------------------------ please check pics and info carefully contact me if needed thanks for the look ----------------------------------- $300.00
