07-08-2021, 03:58 PM
At one time, Paul Booth was a flatback whiz. See if anyone here knows how to get hold of him. I remember when we had boxes full of flatback parts! Most of the guys switched to Crescents, Christensens or the like. Basically Tillotsons with mods. A tilly HL250 or 227 would be a good swap for gas, an HL293 for alcohol. On a stock motor, even a HL232 from an 820 West Bend would run like a flatback, and parts are readily available. The 227 and 250 are gas carbs that came stock on rotary valve 100cc Italian engines like Komet, BM and the like. The also make dynamite alky carbs in pairs with the proper mods. Ted