Tunnel ram or no tunnel ram...

You can do it. I will send you a 6-32, 8-32 and 10-32 tap and the correct drill bits to drill them. It won’t cost anything.

I can get you the brass set screws in those sizes if you can’t get them.

I don’t know if I just send you something as a gift if you have to pay taxes on it or not. I would hope not.

There are also very small number drills (60-1) that you’ll need. If you can’t get those, let me know and I will get you a set of those. If you look up the exact sizes of the number drills you may be able to use a metric drill that is very close. That would work.

You can use the drill bits as a pin gauge set if you can‘t get pin gauges.

Really this is very easy. We can walk you through it. Especially since you are an ocean and then some away, learning this for yourself will pay huge dividends down the road. Who knows…you get a handle on this stuff and maybe you can tune carbs for money where you are, if there is much of a need for it.

Your metering blocks may be 3 be capable but you may not have the third circuit. If there is a brass tube in each venturi then you have 3 circuits. If it’s not there, you have 3 circuit capable metering blocks but you aren’t using it.

If you can, take a picture, a close up of the boosters from the top so we can see if there is a small brass tube in there.

That will clean up a bunch of questions.

Once we get that sorted out, it will be easier to get you started on correcting your tune up.

I don’t remember so remind me, what ignition are you using and where is your timing?
This is great, thank you! Perhaps there is hope for this after all. If you declare 15$ value and used stuff they will not tax it. I guess ups or fedex will be fastest.
I will cover the costs, let me know how much are all the taps, drills etc. We need to figure out how I get you the money.
Frankly I learn everything as I go on regular basis and sometimes it pays off and helps getting some parts money, but not many crazy people like me here.
I am worried that carbs mods are beyond my skills.
I needed new axle, I learned how to build one with help of Cass Eslick, made tools on lathe, pucks in Dana 60 and 8.75 sizes and already built some for people. Not a single fail so far. Same story with transmissions, engines, some camshaft specs advice here and so on.

I will send photos today. I believe there are no brass tubes and blocks are just capable of 3 circuit operation.

I’m running crank trigger, fixed at 34 degrees, retarded for cranking, advanced to 38 between 600 and 1200 to get better idle. I use programmable msd 6al2 with map sensor that works as timing advance in light cruise high vacuum situation. I disconnected map sensor for tuning purpose now. It gave me great fuel economy but not really that important at this stage.