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Old 09-23-2022, 04:04 PM   #11
MARKDTN
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Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,141
Re: 72 K5 EFI upgrade & evap canister woes

I always leave the EVAP and canister purge when I do EFI. I do usually use 89-95 TBI truck charcoal canisters because they only have a line from the tank vent and a line to the canister purge solenoid. I've done Tuned Port on both an '83 K20 and '85 C10 with '87 TBI fuel tanks and also a '71 C10 with an S10 Blazer TBI tank.
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'83 K20-TPI
'73 C10
'79 C10-ex-diesel(SOLD)
'07 Tahoe(Son driving)
'14 Suburban-DD
'71 C10-current project
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