I bought some PE carb linkage aand gave up on them. Too small. I've been using the covers from telephone wire (red, green, yellow, black)as spark plug boots on the engine side - distributor side just gets glued. A months ago I started using the same telephone wire as receptacles for fuel lines. It looks better to me. The biggest problem I have is the limited number of colors. I have this thing about ignition wires being in the same color family as the body color. I haven't ordered Donn's 2nd DVD yet but didn't he cover engine detailing in a detailing DVD?