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A stock GM HEI distributor just wont fit without major hammer clearancing in second-gen Novas. We opted for MSDs Ready-to-Run HEI replacement kit, which includes a billet distributor with integral module and vacuum advance and a Blaster 2 coil ($299.95 at Summit). It is pricier than an HEI, but it offers a stronger spark and a very easily tunable timing curve, and the quality and trick looks dont hurt. MSDs new HEI Tower cap now comes standard on all its billet distributors, replacing the older points-type wire sockets for better boot retention on the cap. We used a set of MSDs universal cut-to-fit wires.