Quick Fuel 1 3 4" SS Throttle Plates (4 Pack) 4254080BK Does not require an MSD 33 174520X Does not require an MSD Ignition ControlSupplied with an HEI style distributor cap and rotor (accepts Cap A Dapts)Mechanical advance assembly can be locked out for crank trigger systemsAdvance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reductionPolished steel shaft is QPQ coated and guided by a sealed ball bearingMaintenance free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm rangeCNC machined billet aluminum housing and billet aluminum baseVacuum advance canister for improved economy (can be locked out)Easy to adjust mechanical advance with supplied springs and stop bushingsPowerful built in module produces a 7 Pickup and reluctor are parylene coated for resistance against corrosion The Hot Rod series carburetor is our answer to the needs of street machines everywhere from muscle cars to street rods since it’s inception in 1998