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Re: K30 Downgrade to Cummins Project
Jud, it sounds like your engine has the basic fuel screw turned in a bit. Here is what I'd do to make it an awesome hauler and mileage unit. 3200gsk in the injection pump, turn the fuel screw to where you desire and adjust the afc, DennyT Stage II fuel pin, 5x.012 injectors, HX35w from a late 94 up 12v, advance the timing on the IP, and keep an extra lift pump with you or go ahead and upgrade to a low volume piston lift pump. Or even an Airdog or Fass. I have a new cummins one on my truck but these are a diaphram pump and don't live as long as the piston pumps. You will need a little beefier clutch as well to handle the extra power.
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Ryan
1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
1972 GMC Sierra Grande Longhorn 4x4
1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed
1972 C10 Suburban Custom Deluxe
1969 Chevy milk truck
1971 Camaro RS 5.3 BTR STG3 Cam Super T10
1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project
Tired of spark plugs? Check this out.
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