Re: 97 3500 454 4x4 project
x2 on the 5-oh injectors, great choice. I've witnessed two sets of them fix rough running/starting 454s. I have a set waiting to go in mine. Also a 0411 w/Blackbear tune. Just need the time.
You may have solved any fuel issues you had and now something else is showing, the distributors on these things will notoriously wear out and cause the timing to jump around. There is a procedure for setting them, I'd have to look it up if you're not already familiar.
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Devin
1983 GMC High Sierra 2500, 4x4, RC/LB, 400 S.B., SM-465, NP-208, Corporate 10 bolt & 9.5" 14 bolt
1996 GMC Sierra SLE 3500 DRW, 4x4, EC/LB, Vortec 454, NV-4500, BW-4401, AAM 925 & AAM 1050
1997 GMC Sierra SLT 1500 4x4, Z71/F44, EC/SB, Vortec 350
My Introduction with my '83s History
New Daily, the '96
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