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FAST 65-pound injectors were used to mete out the VP100 fuel. To determine what size injectors would work for the application, first determine the maximum horsepower estimated. In a previous incarnation, Mike had used this engine to make 800 horses, so he started there. Divide that by the number of cylinders (eight) to get 100 hp per cylinder. Next, multiply that by a general brake specific fuel consumption (BSFC) figure of .5-pound fuel per horsepower hour for a naturally aspirated engine to get the fuel requirement of 50 lb/hr. Finally, you don’t want to run at maximum capacity, so divide that number by 80 percent to get your target fuel injector size of 62.5 lb/hr. Mike saw that FAST offered a 65-lb/hr injector, and was easily able to make them work.