Im listing this for my buddy. Was only used for mockup on his 67 GS project. He ended up going with a NON vac advance distributor. MSD 8552 Distributor new only used for mockup. Fits 400 430 455 engines. Comes with the harness. $275 Shipped For an extra $80 ill toss in the new MSD HVC coil pn 8252.