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12 valve upgrades

541 views 0 replies 1 participant last post by  Fencemike 
#1 ·
I have a 89 w250 with a Cummins 12 valve. All I have done is fuel pin, air intake, and straight pipe so far. I have a bad injector to replace so I'm thinking of upgrading them all. Also considering new turbo and 3200 rpm spring. The truck is a daily driver. Not looking to pull or race with it just make it a little more fun to drive. Any advice on what turbo/ injectors to get
 
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