My Dad has them on his 1936 Ford Coupe and his 1930 AA ford 2 ton Truck, only difference is, his have the clear plastic coating (or whatever it is ?) to keep the laquar coating from cracking, I certainly will start doing more! research before purchasing in the future,sometimes I forget that I litterally have the world at my finger tips with a computer, My only cocern at this point is will the wire deliver an adiqaute flow of ignition? as I will be running the Jaguar ignition system