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CELEBRATING 60 YEARS OF PERFORMANCE 55CARBURETOR TO TBI ADAPTERSFor mounting a stock 1986-1995 Chevy or GMC truck, or Holley TBI system to any Holley 2V 350-500-650 CFM manifold. Only 1/4\GM TBI TO HOLLEY 2BBL 2207*For mounting a stock 1986-95 Chevy or GMC truck, or Holley TBI system to any Q-Jet, Thermoquad or Spread Bore. 2208*GM TBI TO QUADRAJET 4BBLFor mounting a stock 1986-1995 Chevy or GMC truck, or Holley TBI system to any Square Bore 3V or 4V manifold.2200* 2210*GM TBI TO SQUARE BORE 4BBLDESCRIPTION PART #SB Chevy TBI REAR Mount to Holley 4V 2200*SB Chevy TBI CENTER Mount to Holley/AFB 4V 2210*SB Chevy TBI FRONT Mount to Holley 4V 2202*BB Chevy TBI REAR Mount to Holley 4V 2201*BB Chevy TBI FRONT Mount to Holley 4V 2203*DESCRIPTION PART #SB Chevy TBI FRONT Mount to Holley 2V 2204*CARBURETOR TO TBI CONVERSION ADAPTER PLATESDESCRIPTION PART #SB Chevy TBI REAR Mount to QuadraJet 4V 2206*SB Chevy TBI CENTER Mount to QuadraJet 4V 2211*SB Chevy TBI FRONT Mount to QuadraJet 4V 2208*BB Chevy TBI REAR Mount to QuadraJet 4V 2207*BB Chevy TBI FRONT Mount to QuadraJet 4V 2209*%uf0d4 Improved Cold Starts%uf0d4 Less Elevation Sensitivity%uf0d4 3 Different TBI Positions Available%uf0d4 For GM & Holley TBI Systems%uf0d4 Gaskets & Hardware Included%uf0d4 1/4\ Tall for Ample Hood Clearance2211* 2203*NOTE: 87-95 GM 5.0-5.7L=1-3/4\7.4L TBI you must use Trans-Dapt spacer part #2536 or 2736.See Page 62 for Replacement TBI gaskets.*Not legal for sale or use on pollution controlled motor vehiclesCARBURETOR TO TBI ADAPTERS#2457 raises the TBI housing to allow 15% more air flow by the injectors, delivering a 2 to 3 horsepower gain. Fits all Chevy & GMC trucks with a 4.3L V6 or 5.0-5.7L V8s. 2458 fuel line extensions attach to existing fittings to lengthen the fuel lines and are required for all Trans-Dapt TBI spacer installations. 2458Fuel line extensions lengthen the gas lines and are stronglyrecommended for a SAFER installation of ALL TBI spacers.THREAD SIZES:1 fitting- 5/8\1 fitting- 9/16\APPLICATIONSSWIRLTORQUEWIDEOPENSMOOTHBORE86-91 4.3L V6, 5.0L, 5.7L V8 Chevy/GMC Trucks, S-10 & SUVs (SINGLE WING NUT Air Cleaner)2533 2633 273392-95 4.3L V6, 5.0L, 5.7L V8Chevy/GMC Trucks, S-10 & SUVs (DOUBLE WING NUT Air Cleaner)2534 2634 273487-90 7.4L Chevy/GMC Trucks/SUVs & Motorhomes 2535 2635 273591-95 7.4L Chevy/GMC Trucks/SUVs & Motorhomes 2536 2636 2736THROTTLE BODY INJECTION SPACERS (TBI SPACERS)TBI FUEL LINE EXTENSIONS& TBI RISER PLATESDESCRIPTION PART #1/4\5.7L V8 Chevy/GMC Trucks, S-10 & SUVs 2457*Fuel line Extensions for TBI Spacers 2458THROTTLE BODY INJECTION SPACERSThe slotted port design of our SwirlTorque%u2122 TBI Spacers creates a vortex that provides a better air/fuel mixture for greatly improved low-to mid-range torque.The open plenum design of WIDE OPEN%u2122 TBI Spacers promotes improved mid- to highend torque. Ideal for towing applications, or frequent wide-open throttle use.Smooth Bore TBI Spacers increase plenum volume and air velocity for respectable horsepower and torque gains throughout the RPM range.2533 2633 27362457*