Turning up '91 Mits/Fuso?
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the Jatco trans is the weak link, they are only good for about 150 hp max the 437 has the same motor as in mine, it should be 113 hp yet they are capable of over 200hp with just turning the fuel up, there is a external cam on the side of the pump with a bolt to limit fuel, back the bolt out and turn the cam towards the bolt to add fuel, remove the bolt and turn all the way for full fueling and about 220 hp/380 ft lbs of torque (what mine made on the dyno)
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