Michael Mayben
IHPA Tech Moderator - Retired & No Longer Online
I just finished rebuilding my 2210 with Holley kit 3-887. It still splutters and surges. The kit did not include a new power valve. Can you reference a source that sells the power valve only? Also, I have noticed that there is a mysterious vacuum hole in the throttle body that has been plugged in almost every picture I have seen on the internet of the 2210. My carb has not been plugged! Should I plug it?
Holley deleted the power valve component (both designs) from their service kits for these carbs several years ago. That is why I don't advise the use of that particular p/n kit from Holley.
Also, many times we see these carbs with the wrong power valve and even the wrong actuator installed.
Is the power valve you need the "short" one as shown in post#15, left hand carb in this same thread?
I'm preparing an order for an inventory of individual components for these carbs (and many others) right now. But it's gonna be at least two weeks before I see the stuff here in the shop. So to answer your question..."yes" we will have some individual parts for the 2210/2245, but not right now.
As for the "unplugged" hole you describe...without a pic I can't tell exactly what hole you are referring to. I'm assuming you mean the hicd (hot idle compensation) port inside that rectangular opening in the main body casting? If your carb has no hicd valve inside that segment and the cork seal, and the sheetmetal cover to retain it, then that hole is not drilled through! So no plug is needed. Some of the mixers you see in pics have been converted by some cheezeball remanner who has plugged that hole in order to disable the hicd circuit, but they usually fail to plug all the additional holes associated with it so the end result is poor drivability.
Trace the port out through the entire casting and determine if it's open to the atmosphere when completely assembled or in actuality is not drilled through.
Sputtter and surge???? Did you carefully remove and clean all the brass tubes? Did ya remove and clean/polish the power valve actuator and then verify it's proper operation using a mityvac? Have all drilled passages been meticulously cleaned deep inside (not just soak in carb dip which really does nothing) and then verified for flow using a liquid?
Are you certain that you used the correct throttle body-to-main body insulator gasket for your particular list number? What is your list number and vehicle application??

