I had purchased a 6210 holley used about a month ago. I am in the process of putting it all back together but ran into a problem. The power valve on the primary side disinegrated while removing and it left the threads intact. I couldn't get them out and ended up using the wrong tap (standard threads and not pipe threads) so now it is all facockted. The secondary side had a power valve plug in it and this is my question. Can I plug the primary metering plate with a bolt from the hardware store and use the secondary plate and the new primary one with a power valve? Is their going to be a problem with this method? I have also modified the choke horn and actually milled it. It looks great and I was wondering if their are any other simple mods that I can do while I have it apart. P.S. The rebuild kit comes with non-stick gaskets for those who are looking to rebuild their model 4165. I made the mistake of ordering non-stick gaskets outside of the kit.

I'm not certain of the facts, but I've never heard that the primary and secondary blocks are the same. Most of them are not, in fact.

1st, check the circuits of each. If the secondary block doesn't have idle mixture adjustment, you know the answer right there. If it does, compare them against each other for each and every hole and circuit.

I would think the easiest and surest path would be to get a new primary metering block.

Thanks for your input. I have checked them side by side and they are the same right down to the numbers. They both have the idle mixture screws on the sides except the secondary didnt come with any in it. Is it normal for the secondary to have a pv plug? Also, is there any place other than ebay that sells the metering blocks?

Most secondaries don't have the idle mixture adjustment or PV provision. Very few have the PV in the secondary, most that do have non-progressive linkage (or so I hear).

Proform has metering blocks. Check Summit. I think they're all blue, though. However, not sure they work with the 4165.

Thanks again. I will have to check out the proform blocks. I was searching through some old posts and came up with another question. If I put a primary block of the primary and secondary side would that make it 4 corner idle? Some of the searches I have been reading through suggest that this is what happens.

well i have narrowed my problems down to just buying a parts carb and using it for needed parts. I have two more questions though:
1. the rebuild kit came with a check ball/ball bearing but when i disassembled the carb there wasn't any such thing at all. the only closest thing is a rattling that i had heard in the primary and secondary metering plates.

2. 4 corner idle, is it possible with my given situation if i get another pair of idle mixture screws and use a powervalve on the secondary side?

Look in the fuel bowl where the accelerator pumps mount. Should be a check ball in there.

Don't know about #2. Never messed with 4-corner idle or secondary PV, personally.

well i have looking hard at the enlarged parts view and it shows the ball going into what looks like a vacuum secondary housing and not the accelerator pump housing area. i am hoping that holley will give me a straight answer this time than to ask someone else like they did with the metering blocks.

oh yeah...the numbers on the blocks are the same with the exception on/in the tiny little rectangle/square on the outside edge. it has 35 on the primary and 36 on the secondary. with my research that is the parts production sequence? kind of like a 35th part made and 36 part made. other than that they are perfectly identical in appearance and other codes.

http://www.holley.com/HiOctn/TechSer.../f4150-60.html

#108

wrong model there. this is mine a model 4165 list 6210

http://www.holley.com/HiOctn/TechSer.../f4165-75.html

#118

"Not all parts are used on every model..."

Spartyon

Have you ever ran 4165 carb, I have had a 6210-3 on a 350, and it was almost too much for it, even at the listed 650cfm. Also these spreadbore carbs are some of the few carbs from holley that arent close in primary and secondary jet sizes, Primarys are 60's and secondarys are 83 I think. My 6210 is currently on a 305 with the secondary's disconnected, and it gets almost 15mpg. And the one thing I loved about it the most is the engine would be cruising nice and calm, but open the secondarys and its a whole different creature.
Later
Spud

no i havent run one yet. i already have a new 750 vac secondary carb and i wanted to have a double pumper for my other 350 to go with my modified stock intake. i chose this one because i have heard good things about it. i am doing much research but nothing has told me anything performance wise on what to do about power valve plugs or anything like that. i talked with a guy who i just bought a parts carb from for the primary plate and he said he has one with a plug on the secondary as well. i have a jet kit and non-stick gaskets so i am planning on playing with this thing alot.

I for the life of me can't remember if mine has a PV or a plug, I will get out in the garage and check my parts carb, and see what it has.
John

hey spud,
you don't happen to have any acc pump housings and arms laying around by any chance do you?

Yep, I have atleast 1 stock 15cc from the 6210, maybe both. I'm not worried about the parts carb. I got if off of ebay and got totally screwed, I was told it was rebuildable, Of course it wasn't but, It did have a good base plate, and that was what I was needing. I guess I lied, It didn't have anything, on it for the accerator pumps, Sorry. I did look at the secondary plate and it isn't drilled for the PV, its solid casting.
Later

My 4776-2 (600cfm double pumper) has a PV plug on the secondary side.

hey spud you dont have a primary block spare by any chance do you?

better yet...what is left of your "parts carb?" any chance of getting rid of it and making some of your money back?

Sorry, I don't want to get rid of it. But if still want the Primary block, PM or e-mail me.
Later
Spud

Okay, I am 99.9% done with the rebuild. I am now completely stuck on the manual choke. The original one that I had didn't have a choke on it so I put one on from another 6210 model. Everything has fit with the exception of me not understanding holley's blown up version of this model. On the secondary side of the carb on the baseplate I cannot figure out how to mount the two levers, spring, and adjustment screw. I am so confused. I thought I put it on like holley's picture but when I have it at WOT it hits the choke lever on the carb body. Does anyone have a real picture of how these parts attatch to the baseplate?