Review on 🔧 ABN Valve Lapping Grinding Tool Kit – 2-Piece Set with Dual-End Suction Cup Lap Stick, Sizes: 1-1/8, 1-3/8, 5/8, 3/16 Inch by Marcus Zimmerly

These are real wood fire sticks, not plastic like I thought. The cups will not fit Ford Flathead valves or Alice-Chalmers D15 valves. Maybe they work on smaller valves? On a flat head, a cup of the same size hung on the inlet, the same cup did not fit the exhaust. The next cup was too small to start a real fire. They are suitable for much smaller single-piston engines. So if you're cruising the BBC's SBF BBF SBC at midnight, you're unlikely to be taken on a race day or Saturday night cruise.