89 Fox with Holley 650 double pumper supposedly rebuilt from Holley to stock internals is causing a stall on hard brakingand hesitation on hard turns like the bowls are losing fuel but floats are adjusted high as they can go but even all the way up barely will trickle out of the sight plug hole have no clue maybe its defective carb or bowl issue other than that it runs great
Holley 650 Dp Stalling
- Thread starter Demustangs
- Start date
Gear grabber
Well-Known Member
- May 23, 2016
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normal things to check, needle valve & seat, sticky floats, fuel line restriction.
There's a restriction in the inlet that feeds the needle and seat. Or a defective assy. If you have the floats as high as they will go, gasoline would be pouring out of the bowl vent on top of the carburetor.
I mean i have adjusted the float high as i could basically and it still won't trickle out normal I have to bump it harder for it to even trickle out
Pull the fuel line off and see if you can blow air through the passages.
Where is your fpr at and where is your filter located.
Where is your fpr at and where is your filter located.
No,..remove the needle and seat assy. Make sure that there's nothing clogging it. Check that your float level is truly correct. Adjusted properly, once the bowl is inverted, the top of the float hangs evenly with the reinforcing ribs around the top two bowl screws.
If this is your first Holley, you should really get one of the many tuning books written out there to deal with one of these carbs. They have been used successfully since the early 70's,..and when they work they work. But if you got something wrong ( and you do,...) they suck.
I have a 260$ efi to carb dual stage fpr from jegs fender mounted and filter is the stock mou red by the tank
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