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standard mechanical fuel pump on small block 360.

Ahh.. I see now, because less surface area to contact to force it open.

I do have another .110 n/s that I bought. I could install that, but i'm not sure how much it would bring the pressure down when going from .120 that is already installed in the primary. I'll look into getting a different gauge like the other fella suggested.

Could be a crapped out summit brand gauge ?

So good news, I got the car fired back up and all is good now. That .110 on the secondary really helped me get many more threads to catch on the adjuster nut and I was able to get the fuel up midway on the sight glass now no problem. I did see that on my fuel pressure gauge it's reading about...

So interesting thing... I honestly only messed with the secondary bowl last night, but i replaced the N/S with the .110 suggested. But when I went to the primary instead of being .150 like the secondary it was .120 sized... So would it be wise to make both primary/secondary the same or is it...

The pictures were great ! thanks for showing everything clearly.

You are correct, I have the sight glass so fuel will need to be middle of window. As for the needle. 2 things are going on. The size I found that was installed is .150, secondly the needle is fully seated on my secondary (seen in first post picture) and it's still flooding badly.

I see Jegs has their own brand for shy of $10. Would you think these are bad quality ?

I definitely will. I'd hate to take the bowl off to adjust, but i'm also curious how this all works too since it's my first try at low grade "carb repair" What is kind of bothering me is that when I got this new carb about 2 years ago from a speed shop near me they had it tuned up nicely, but...

This is the suggested assembly ?

Do you believe that because of such a large needle that is why it was cranked all the way down until it bottomed out just to keep the level of fuel at the bottom of sight glass or is the internal screw as stated from others something to cause this issue being inserted too far?

It is exact same carb as the first holley carb picture with the clear windows. The needle was already flush when I went to try and adjust and I thought that was odd. But the car ran nice and smooth at idle, but I noticed when I hard accelerated it did a little stutter so I thought i needed to...

Some shop around town replaced my old junk carb with this one so i'm learning about this stuff now. But the needle looks exactly like this from jegs and same size with the round bullet tip needle. Says this is for alcohol ?? I suspect I don't need alcohol needle ?

This is what is happening. The front bowl is set nice right above the bottom of sight glass and the rear bowl just fills up and overflows rapidly. I can't figure out why.

What is causing the needle to be so low that the nut can't even turn it ? This is the position the needle is in prior to raising the fuel level that was below the sight glass.

I'm needing to adjust my fuel bowl level on my XP Ultra #80802 On their website instructional download they said when looking through the clear sight glass the fuel should be midway up the glass when properly adjusted, everywhere else i'm reading and even on Holley's youtube instructional they...

Well I finally got my car back home. Went back to the car about 2 hours later after it had cooled down and it took a few minutes to get it running. After starting it was trying to die, so I had to baby it to let it warm up a moment. I was able to drive it back home about 2 miles down the road...

The tank has16 gallons in it right now

Did you find a solution yet ? Mine just started doing this too and I got stranded today...

When sitting around idling in the driveway the psi was sitting around 7 on the fuel pressure gauge. If the car is having issues getting fuel to the engine if I drive the car and it dies on me I guess I should push the throttle linkage and look in the carb to see if anything is squirting in ...

I did forget to mention that I put in a brand new fuel sending unit and sock. But if it was clogged then why would the car idle fine for quite some time and drive with no issues until about 10-15 minutes into driving. Is the heat loosening up gunk or something ?

My '74 dart sport just started producing issues that never have happened before. My dad drove it several weeks ago and after 10 minutes or so the car surges and sputters like it is out of gas. Started it up and drove it to the gas station around the corner and filled up with 11 gallons, so it...

oh that would be awesome. I'll be sure to do that !

Alright gang, here's the scoop. My dad and I started to install the new Holley electronic choke kit on our Holley 3310 carb. Well once we started, we soon realized we were missing the choke shaft lever assembly and choke plate. So I was wondering if anyone on here would happen to have them and...

I'm in the same pickle here! But first off, are you speaking of a dual plane or the single, because I have the dual plane. I'm not sure if the thermo's would be different or not from one to the other. But if anyone has gotten a thermostat housing for dual plane where did you get it?