I bought two liquid dampened vacume gauges from McMaster Carr for someting like $12.00 each....about $2.00 worth of clear pvc tubeing and a galvinised "T" brace ($1.50) for building decks, from Home Depot, and I got a $27.50 carb balancer that doesn't peal paint, leak on the floor, or get sucked into the carb....
