The stock injectors are made by Bosch. It is a 6 hole injector. The holes are .009" in size.
What are your plans with the truck? Towing, sled pulling, daily driver or so on.
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93 W350 w/duals, fuel pin turned, 6X.018" injectors, 4" exhaust, 3" air intake horn, Super HX40/16, auto, 3:07's axles, 2" skyjacker lift, B&W flatbed