Holley/Demon Carb stumble

so i when out to get the metering block off of my 3310. Its not a 3310 its 1850 that i put the duel feed fuel bowl on.
I jumped on ebay and found another block that is for a 3310 and bought it.

will a 1850 work? i have 2 of them.
I also have a list #6160 carb that was holley original equipment on a 383/440 (1850 design)

Don't really want to disassemble that 6160 as it was the Best carb i ran on my 340. Way better, than its look alike 1850.

So i start to do some research. So that i can buy a spare metering block or maybe 2? There or a LOT OF METERING BLOCK on ebay that only have the stamped # on the metering blocks that has nothing to do with the list# (3310) or the metering block # 134-131) I can't seem to find any info out there to cross reference the same number on the block with.......well with any thing.
the stamping are numbers like 11761 or 7492 or even a 6909 8101. That last one the claim is for a 72-74 dodge..........dodge what? carb what? I don't know.

I have 2 metering block coming my way that are sapoaby off of a 3310...........how the, bank-it-e-blank do i know that's what they came off of?


You are going to screw around and spend enough money that you could have purchased a couple of billet metering blocks and been much further ahead. If for no other reason than the easily adjustable power valve channel restrictors.