Hi all, not sure if this is the correct place to post this but I need some help. I just rebuilt my chevy 350 for my 64 Chevy C-10 and everything has gone smooth for now. But when I take a turn the engine wants to die. I can keep it alive if I feather the throttle. I'm using a new Holley 4165 spread bore. It doesn't have fuel bowl adjustments. I'm wondering if my fuel pressure is too low. I'm not sure how to check to see if it's too low though. Any help would be great. Thanks! Alex
That screw head and nut on the top of the front float bowl is the float ajustment. By this do you mean coasting at idle and turning the steering wheel, or the act of side G force makes the engine stumble? Excessively low idle can cause stalling if you have power steering. Turn the wheel and load the pump hard, it bogs the engine. Float level being really high or really low can cause the turn stalling too. But are sort of different symptoms that can both be covered with feathering. good luck
Did you rebuild the carb when you did the motor? I used to rebuild my Holley every 1-2 years as preventative maintenance.
Guys, some new Holleys don't have adjustable floats...they are supposed to be set properly from the factory. It saves Holley some warranty return h***les, I 'spect...not my preferred way of tuning things, but, it is what it is. Alex, you should have somewhere between 4.5-7 lbs. of fuel pressure. Depending on whether you have dual inlets or a single inlet, the easiest way to check it might be to buy one of the feed lines that has a gauge incorporated into it. Or, perhaps your existing feed line has a 1/8" NPT plug for a gauge. 4165 represents the general layout of the carburetor, but it isn't the exact model. The model number should be stamped next to the word "LIST" on the choke airhorn. If you can post that it would be helpful. I'd also search for vacuum leaks.
does it matter how much gas is in the tank, or does it do it all the time. Ran into a similar problem on a harley a few yrs ago and there was a small pinhole in the pick up in the tank when the level got below a certain point the gas would slosh and it would **** air. dont know if this will help but its something you could check if nothing else works
Wow you guys rock. Thanks for the quick replies. Anyway.. I have a holley 0-6210 Model# 4165 I'm running a stock mech. fuel pump at factory settings. Everything on this thing is new or newly refurbished. The carb. being brand new.. well 4 days used now. I too was suprised by the lask of externally adjustable fuel bowls. The carb is new, but I doubble checked all the vac***e line hook ups, and they are all blocked/ being used ( brakes/ distrubiter). Intake manifold has been blocked off as well, and I have tons of br*** plugs. This happens if I make left or right turns, and with a full tank of gas. It happens when I coast through a turn. So if I'm coasting 100 feet at idle, make a turn, it wants to die. If I have my foot in it a little, it's happy, if I'm just comming out of the rpm's, it's happy. I've run mostly L6's with rochesters on them so this is my first real experince owning a V8 and a full on 4 bbl. I've worked on them, but never owned one everyday to mess with. Thanks for the help again. Alex
you need to take the bowls off and adjust the floats properly. i see "out of the box" carbs ALL the time in my carb business that are NOT setup properly. just take the bowls off, hold them upside down and adjust the little tab on the lever for the float until it is parallel with the top (bottom as you're holding it) of the fuel bowl.
Check your ignition wiring too. Could just have a loose primary wire. I would also look for vacuum leaks too. Had a 194 six that had a loose intake manifold that caused this to happen too.
Another quick fix I used to do after running for a while: when mine would die at stop signs I would pull out the idle mixture needle and shoot carb cleaner through each idle port. Of course, turn them in first and count turns to allow resetting in the same position.
Well, did some work on it yesterday. The idle was set to 500rpm, so I fixed that and set it to 800. It still tries to die in the turn but not as much. I don't have to touch the pedal now. Still concerned though. I'll check the bowls later tonight / tomorrow. Alex
Just a thought. But could it be something other than fuel? I've heard of people chasing down similar problems only to find the wire to the dizzy loose and would loose contact on a turn, or a broken dizzy cap that could be getting moved just enough to loose terminal contact. I could be way outta line, but something to think about. I see that d2 already mentioned this, but its worth checking out.
One float could have a pinhole if br*** or saturated if cork ,and sink on a turn.See if one side feels heavier,if br*** submerge in water and look for air bubbles.
I think it was the idle set at 500 rpm What kind of camshaft is in this thing? Is the 800 idle in gear or neutral? Give us a little more info, there's a wide range of acceptable idle speeds. Have you put a vacuum gauge on it? Good luck!
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