where does this lead to? carb question

[RD]

it has been so long since I have worked with a 2bbl carb, that for the life of me I cannot find out where this leads to?  holley 2210 carb

[471_Magnum]

It's a bowl vent. Where is gets plumbed to depends on the application. Probably goes to the breather cap PCV system.

[RD]

It's a bowl vent. Where is gets plumbed to depends on the application. Probably goes to the breather cap PCV system.

that is what I was thinking, but when I got the carb I had no air cleaner housing or hose plumbed to it to remember right off.  thanks 471!

[Chryco Psycho]

that is a bowl vent & would connect to the carbon canister 73 & newer

[RD]

that is a bowl vent & would connect to the carbon canister 73 & newer

hey neil, what about 72 model year?

[firefighter3931]

Probably runs into a nipple on the breather cap; some of the early 70's stuff had multiple nipples on the breathers. 

I've seen a few of those....but it's been awhile, lol.

Ron

Ps. I have an old Holley 650dp with the same style vent on the front bowl. I remember running the list # and it was an oem 70-72 Chevy 350-370hp "factory" carb.

[Nacho-RT74]

TQs have a similar bowl vent and is not plugged anywhere. Its opend or closed depends of throtle

[Ghoste]

Depends on the emission standards of the time and location Nach. 

[Steve P.]

Can't help you on a 72' But,,, on my 87' 150 PU, (if my eye are not deceiving me), that is a bowl vent and it goes to the vapor recovery tank. It sure looks the same..

Maybe it's a CALIFORNIA THING..

[John_Kunkel]

In '72 and later the bowl vent hose goes to the charcoal cannister, on '70 and '71 it goes to the multi-nipple valve cover breather.