Trans-Dapt Swirl-Torque Plastic Phenolic Carburetor Spacer - 1" Holley/AFB Tire Pyrometer Extension Module 5 Speed design with lower

5 Speed design with lower right reverse location using 12mm x 1

Collars use two Allen head set screws to adjust for tall deck engine blocks

Easy no drill installation and all the necessary hardware is included

aluminum heads including the fast-burn aluminum heads and may be used on 1969 thru 1986 cast iron heads by drilling and tapping one hole for the upper mounting point

Trans-Dapt Swirl-Torque Plastic Phenolic Carburetor Spacer - 1" Holley/AFB Tire Pyrometer Extension Module 5 Speed design with lowerTrans Dapt Performance 1" Holley 4bbl Square Bore Plastic Phenolic Swirl Torque Spacer Trans Dapt Swirl Torque Plastic Phenolic Carb Spacer 2531 1" Holley AFB Computer Designed Road Tested For Proven Results Prevent To Out Perform The Competition Improves Low To Mid Range RPM Torque Improves Pulling Power Great For Both Truck And Car Applications Improves Drive ability And Throttle Response Each member company of the Hedman Performance Group is a