-designed and made in U.S.A.-, modern solid-state circuitry, simple screw-in replacement of original transistor circuit... see more-designed and made in U.S.A.-, modern solid-state circuitry, simple screw-in replacement of original transistor circuit board inside amplifier box Note: Requires use of part #90271 TRANSISTOR IGNITION AMPLIER BOX EXTENSION
V8 all 2nd design: tall 1964 spark plug wire bracket mounted to passenger side intake... see moreV8 all 2nd design: tall 1964 spark plug wire bracket mounted to passenger side intake manifold, except 421 C.I. Super Duty (Dated 1-Q-63)