QA1 Pro-Coil Coil-Over Shock Kit Twintube Single Adjustable YA0817R Microsteer Size:X-Large (58-60)

QA1 Pro Coil Coil Over Shock Kit Twintube Single Adjustable YA0817R Microsteer Size:X Large (58 60) Microsteer ApprovedDoes not require an MSD Ignition ControlSupplied with a HEI style distributor cap and rotor (accepts Cap A Dapts)Nylon pads ensure smooth operation of the advance weightsAdvance weight pins are staked and tig welded to the plateMechanical 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 sealed ball bearingsMaintenance 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 Used in drag racing Multiple spring rate options are also available