I bought two sets of them. The clamp diameter is too big!
Having just completed an H2 motor build, I used new Kawasaki intake manifolds. These clamps will not provide a tight fit. I didn't have any other clamps on hand so I ran a thick zip tie around the inside of each clamp (having cut off the end of the zip tie) to reduce the inside diameter. That worked but it's not an ideal solution.
Looking through my old invoices I see I bought at least one set from Z1Parts. Not worth it to ask for a refund, I'll just find the proper clamps somewhere else.
