Rochester Quadrajet 1976 Pontiac TransAm 17056262 455/APT/800CFM/electric Choke.

Rochester Quadrajet 1976 17056262 Pontiac Trans Am 455engine(last year)..Smoke Stack hood scoop air lid vent...800cfm (plus) “bump” core...Condition is Remanufactured  ...no core charge…built and ready to ship…fully disassembled...soda media blast cabinet session…all passage ways opened with fine wire and shop air…nothing has been left untouched! ...modified for a adjustable idle, part throttle and full throttle performance...if you have modified your engine, you need this Quadrajet. …fuel well plugs tested and sealed with 2K epoxy…oven cured. ...primary throttleshaft line-bored and the bushings replaced with 5/8” wide Oilite self lubed bronze oversized replacements...this eliminates any vacuum leaks/erratic idle due to wear...New stainless steel screws and Locktite on assembly...rock solid and very smooth throttle pivot motion. ...enlarged idle mixture holes will allow a much wider range idle air/fuel ratio control. ...Pontiac half-hidden secondary air flaps (best version) allow instant fuel spray from the secondary pull over enrichment shooter (P.O.E.) holes...POE holes enlarged for richer initial shot of fuel...secondary fuel well restrictor holes enlarged for faster refill after a full throttle RIP!!...CFM limiter tab carefully removed and modified for a adjustable set screw..adjust it from mild to wild flow(800 plus) CFM...secondary fuel channels enlarged to eliminate the “dog-leg” restriction…emulsion tubes enlarged….primary to secondary linkage has been tweaked for a more aggressive opening sequence…these mods will eliminate any lean lag/bog when going full throttle...better tell her to hold ON!! ..enlarged idle tubes and idle down channel restriction to compensate for performance mods. …idle air bypass added to baseplate(eliminates nozzle drip with performance camshaft due to increase throttle angle opening issues…helps keep it on the idle circuit and not the mains! ...primary accelerator shooter holes slightly enlarged and verified to spray two fast solid streams!…accelerator pump duration pump shot linkage modified for a easy quick change “clip” version. ...factory air horn APT (adjustable part throttle) sealed plug carefully removed and opening is tapped for a removeable Allen head set screw...this allows easy access to the interior APT tower piston, which can now be turned to make on the fly adjustments to the part throttle air- fuel ratio ...APT piston notched so a straight edge screw driver allows easy precise adjustment...very nice tuner mod to allow the user to take advantage of the QuadrajetPower fully tapered version primary rods “slope” transition…instructions included. …internal casting flash carefully removed with Dremel tool, ...rebuilt with high quality kit including nitophyl float, .135” version needle/seat, upgraded ethanol resistant blue seal/garter spring HI-PO accelerator pump, thick gaskets, long style fuel filter and new fitting...New primary and tested/polished secondary choke dashpots (both set perfectly)...includes air lid and baseplate gaskets. ...74 primary jet..44 QuadrajetPower fully tapered primary rods…richer CP (.057”) tip secondary rods. ..includes the factory DB (.0686”“ lean” )secondary rods…N hanger. ...factory hot air choke properly converted to a electric choke set up…new USA built electric choke insert, just supply it with a fused “key on only” 12 volt wire. …includes multi rear vacuum tree fitting. ...painted with ceramic HI-temp engine aluminum paint for appearance and heat/oil/fuel resistance...oven cured …TransAm Firebird tramp stamp tattoo..BADDIE. ...shipped immediately …double wall cardboard added and plenty of room for one inch complete sponge foam/bubble wrap 360 degree surround protection...usually delivered within 2 to 5 days by USPS Priority Mail. …includes instructions for the various mods((APT/CFM,ect)….very easy to follow. ...any questions or additional pixs please reach out.

• Fitment Type: Performance/Custom
• Items Included: Gasket
• Manufacturer Part Number: 17056262
• Mounting Hardware Included: No
• Material: Aluminum
• Superseded Part Number: 17056262
• Vintage Part: Yes
• Barrel Count: 4
• Modified Item: Yes
• Placement on Vehicle: Front
• Brand: Rochester
• Choke Type: Electric
• Type: Quadrajet
• Mounting Flange Type: Spread Bore
• Interchange Part Number: 17056262
• Manufacturer Warranty: No Warranty
• OE/OEM Part Number: 17056262
• Features: Quadrajet, Anti-dieseling Solenoid
• Universal Fitment: No
• Country of Origin: United States
• Performance Part: Yes