If you adjust the idle screw don’t forget to go back and check the accelerator pump as changing the idle screw will affect the tightness if looseness of the accelerator pump linkage.
@pcox5333
Жыл бұрын
That would be the air fuel mixture screws first
@KPracing412
Жыл бұрын
Technically Holley refers to them as Idle Mixture screws.
@dreadknot9107
5 ай бұрын
@@KPracing412idle mixture. There’s also an idle screw. And what you called the “idle” screw is the idle mixture
@Motor-City-Mike
11 ай бұрын
Maybe the idle circuits have changed, but rule of thumb on idle mixture screws for a Holley were start at 3/4 turn out, then adjust from there. Spent decades starting there and had much success. (yes, did it for a living 40+ yrs)
@anthonyking4387
Ай бұрын
You must be above 2000 ft
@user-zb5cw4vr1m
9 ай бұрын
Awesome video. Do you have a video on your vacuum hose routing for this carb?
@billhowe4863
11 ай бұрын
The best way to adjust any carb is with a vacuum gauge, you want it to idle consistently and as lean as possible with as much vacuum as possible.
@ThePower1037
11 ай бұрын
Finally someone who understands peak of lean, and that running an engine lean only hurts it if it's designed to run rich.
@kkoch666
4 ай бұрын
the lean drop
@petestarfpv1028
Жыл бұрын
Very cool.
@427yenko67
Жыл бұрын
💯 good info...
@crypto_11
17 күн бұрын
Oh wow
@peted5217
3 ай бұрын
Be Sure to Obtain Holley Carb Manual. You'll wear the pages out before carb runs to your satisfaction !
@guillermosegura1850
5 ай бұрын
Dont know much about carburator but I'm trying to gwt my dad's old el Camino going it sat for a long time n the carburator is running super rich.
@Classic_trucks_cars
4 ай бұрын
Great info, thank you!
@DamionBordelon
Ай бұрын
That's cool af
@chrisloy8800
3 ай бұрын
Why would fuel be coming out the top of carburetor I'm in process of adjusting they primary an second dary a Holley 600 please help me lol
@KPracing412
3 ай бұрын
If it's coming out the vent tube either your floats are adjusted way too high, your needle is stuck open (first thing I do when I see an overflow is smack the float bowl with the back of a screwdriver. Will usually free up a stuck open needle) or your fuel pressure is too high. If it's coming out the float adjustment screw you either don't have it tight enough or your gaskets are bad.
@chrisloy8800
2 ай бұрын
Thank you for answering buddy I greatly appreciate it is coming out of the tube that's sticks out of top of carburetor....the front is primary an back is secondary right? It's hard for me to explain like this lol.. I've taken both of the check valves out an they seem ok... it's my dad's 64 Impala I will try what u have mentioned an will get back with you thanks
@NCmtnDweller
8 ай бұрын
Thanks Hoss
@wtfmotovlog
8 ай бұрын
Hot rods and dad bods 😂
@anthonyking4387
Ай бұрын
1.1/4 is correct! If not your jets are wrong!
@Cash2112
3 ай бұрын
Actually, you should adjust the fuel bowl levels before you do anything.
@Aye_ItsAlexx
Жыл бұрын
What model is that
@KPracing412
Жыл бұрын
That's a Holley 4150 750cfm. It has the choke horn milled off.
@travisdinkins758
Жыл бұрын
@@KPracing412i just went and twisted each screw the same in each side and my mechanic need his ass cut
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