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673 injection pump help

Mean Green

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Hello all have a question and hoping I can get some answers I have a 673 that is natural aspirated I just added a turbo to .With the extra air it lacks in powe the truck never smoked before and I want to turn the pump up a bit to make it run a little better I have looked for a good pic of what to adjust but not exactly sure I know I should have changed the inj pump but don't have the one for a turbo I have a picture from the manual I'm including should I adj the screws marked 1 or the ones marked 2 and witch direction the manual really don't say I don't want to remove the pump to remove the screw from the front and I understand the adjustment is limited with the front screw left in any help or suggestions are welcome thanks Kevin


Edited by Mean Green
incorrect title

If your going to be a bear be a grizzly

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