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These rear-ends have a reputation for being tough to handle the abuse of Circle Track racing
Speedmaster Twin-Carb combine two four-barrel carburetors to achieve the best balance of drivability
greater resistance to tooth shear
especially if you frequently have to remove and reinstall the valve cover
Speedmaster flexplates are the best on the market
Ford SB 289 302 351 Windsor Cast 0.531" Shaft Distributor Gear These rear-ends have a reputationMatch your camshaft with Speedmaster iron distributor gears. These small gears have a big impact on your engine's performance. Best suited for hydraulic or solid flat tappet camshafts, our iron distributor gears are the perfect mates for your cast iron cams. The right choice is critical for your engine and your wallet choose Speedmaster iron distributor gears. They are manufactured from top quality cast iron, and then nitrided for durability.
