'1967 Holiday Race' ~ Plymouth GTX 440 vs. Pontiac GTO 400 'Ram Air'
1967 Plymouth GTX 440/375 HP
Carter AFB 'Trickery' by Jere Stahl
* Change Primary Jets to .104"
* Change {Right Side} Metering Rod to #16-161 {.0635" x .061" x .058"}
* Change {Left Side} Metering Rod to #16-164 {.0625" x .060" x .053"}
* Change Secondary Jets {Right Side ~ .089"} and {Left Side ~ .083"}
* Install Pump Cluster #48-294S
* Drill open Cluster with No. 56 Drill Bit
* Adjust Accelerator Pump Rod to Maximum Stroke {Hole nearest Pivot-Point}
* Drill .128" {No.30} hole in Primary Throttle-Blades ~ .590" from Center and opposite Transfer-Slot
* Cut Velocity Valve Stops, so the Blade stops .030" further forward
* Remove 1/4" of metal from Velocity Counter-weights
* Pin Choke open with .030" Roll-Pin
* Install Carburetor-to-Intake Manifold Spacer {Part #1852278} to prevent heat build-up in the Fuel Bowls
* Install Intake Manifold Heat-Riser Crossover Block Plate Gasket