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Speedmaster offers these HEI Upgrade kits for your stock distributor
They are heat-treated prior to thread rolling and machining and are rated at a whopping 190
It is set up to accept a spread bore carb but comes with an adapter plate that permits the use of square bore carbs
They also feature a 5 axis CNC machined rear cover
When rebuilding high performance or heavy-duty transmissions
Ball and Socket Flange Exhaust Header Reducers Speedmaster offers these HEI UpgradePut together your own custom exhaust system with these Speedmaster collector reducers. Reducer assemblies allow you to connect various sized exhaust tubing to your header, minimizing fabrication.
