Re: troubleshooting help, pressurized fuel tank
Well its normal to have a small amount of pressure built up in the tank. This large amount of pressure would lead me to beleive maybe someone disconected and plugged the charcole canister under the hood or debree had pluged the line. Now my memory is going these days all down hill since the big 30 lol. IIRC you should have a vented gas cap on that setup. Its also possible the vent on that is trashed and you can solve the issue by getting a new vented gas cap.
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1976 Custom Deluxe SWB Med FMB.3/4 Drop.
Gen VI 454, Muncie HD 3 speed With Modified OE Hurst Shifter, 3.73 12 bolt, GMPP HO roller cam, Hooker headers, Performer intake with modified Q-jet, Accel distributor. Best 1/4 12.3 @108. Funnest run 19.84 @88 full 1/4 mile burn out.
1997 K1500 ext cab 5.7 stock except muffler
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