Nettet15. apr. 2016 · If it is just a sag when you add some throttle to accelerate moderately, and not a stumble at steady off-idle throttle position, and if it has a pink pump cam on the primary (which it probably does), use some other cam, white is a good choice for about the middle of the spectrum, blue is aggressive right off idle and if you turn the pink cam … Nettet22. okt. 2001 · Not only did it launch stumble free but it ran 2 tenths faster in the 8th mile. I have not given up on the Holley. I just have no clue what to do to it. I have asked …
How To Cure Carburetor Stumble - Holley Motor Life
Nettet29. mar. 2004 · If everything is set up correctly & the carb is sized right, 1-1/2 to 2 turns out is a good starting point. Set your idle & timing, then adjust idle screws for highest manifold vacuum. You can get an off-idle stumble/hesitation/back-fire from both too much squirter as well as not enough. For most cars, #25-28 squirters are sufficient. Nettet3. aug. 2008 · If you experience an off idle stumble as soon as you accelerate from part throttle or idle check the distributor first for correct initial timing & a proper mechanical advance curve. (inadequate timing will also cause … trentem ller the trentem ller chronicles
Holley Carb Off Idle Stumble Is Pissing Me Off
Nettet8. apr. 2024 · If you have more than about 22° of overlap @ .050" you may want to turn learning off below 1100 RPM or so (basically 2 to 3 hundred RPM above idle) until you get it to idle the way you want. When you get the idle where you want it, turn the Learn back on, but Limit it to +/- 3% in that area. You can lock down the rest of the tune in the same ... Nettet14. mai 2024 · Using the Holley Terminator X EFI software (LINK), look at where the live cursor moves to during this occurrence, and manually tune that area of the Base Fuel … Nettet4. nov. 2015 · 480 HP and 500 ft lbs of torque. 4.11 gears. Muncie 4 spd. MSD dist, and MSD box, all new plugs, wires, and coil. *Holley 4150 750 Double Pumper, model 4779. Timing all in at 36, 18 initial, 10 in the vac can. Timing seems good. Car was running great outside of a slight stumble at cruise. So I changed out the quirters from 31/28 to 35 in … trentemoller into the silence