kthelton Posted April 3, 2009 Share Posted April 3, 2009 ive got a 90 Rmodel dump truck that id like to turn the rpms up alittle its only turnin 1900, how do i do that and how far up is safe. also thinkin about turnin the pump up but dont know how to do that or how far is safe do know if i do it im puttin in a etg gauge. any body out there help? Quote Link to comment Share on other sites More sharing options...
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