Another point i can make is this, the intercooled trucks(91.5 to 93 years) had crappy injectors from the factory. They don't flow as well as the earlier non intercooled trucks. You won't get the same HP gains by just turning the pump up as someone with the earlier gen 1's
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92' D350 LE- K&N filter, Box Opened up, Pump Turned up, Denny T pin, Pull Cable, 16 Cm housing, 4" Bully Dog Exhaust, P/Meter controlled O/D Auto W/Goerend TQ converter.