Can i use any afm?

[richardkeith97]

I 'think' i need a new afm. Ive got an eta. Do i need 2 get an afm from an eta or are all m20 afm's the same?

[Quadrajet]

Lookup your numbers in real oem, or just look them up from the numbers stamped on the top,that is if you have any. And sometimes you'll see 2 numbers.

I'm thinking you'll need one from an eta, as the air ratios will be different from an "i".