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05-18-2020, 10:24 PM
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#1 |
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Registered User
Join Date: Mar 2007
Location: San Pedro River, SE Arizona
Posts: 734
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Sudden Holley Problem
I do not know much at all about Holley carbs - and do not often drive this 68 Suburban SB 327 with a double bowl Holley - but do start/run it regularly and it has never blinked. Today it started fine, but will not settle down and run at idle. Electric choke operates as it should and the engine runs great above about 1,000 to 1,400 RPM but simply dies when the foot comes off the pedal and RPMs drop.
I have tried tapping on the bowls to un-stick any needle valve problem (no effect) and tomorrow will run in Seafoam or something else good toward a clean-out and see what happens, But, even in my Holley ignorance, i am thinking that some internal component has failed because the die-out is so abrupt and this came on so suddenly. Will appreciate experienced insight on this - am moving to new location and need to have this thing running right.
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CCCC 67 Sting Ray Coupe 327 4sp; 68 K10 Suburban 327 4sp; 69 K20 Lifted 383 4sp; 69 C80 Fire Truck 478 V6 5sp/2sp; 69 C20 Longhorn 327 4sp; 70 C30 Wrecker 350 4sp; 70 C30 Flat Bed 350 4sp; 71 C20 LWB 350 4sp; 72 K5 Blazer 350 4sp; 72 C30 Flat Bed Gooseneck Hauler with sleeper 350/TH400; 72 C20 Longhorn 402 4sp; 52 Mack LTL Supercharged Cummins 5sp x 3sp; 01 Dodge 5.9 HO Cummins 6spd; 02 Safari Trek 2430 8.1 Vortec on Workhorse Chassis; 03 Silverado 2500 HD 4wd Duramax/Allison Moved but still in the family 70 C20 Custom Camper 350/TH350; 72 K5 Blazer CST Highlander 350/TH350 Recently sent to new homes 72 C30 MoHome 402 4sp; 72 K5 Blazer Conv 350 4sp; 75 GMC 6000 Aerial 350 w Allison; 72 GMC 3500 Utility 350 4sp; 70 GMC 3500, 350 4sp |
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