FiTech EFI system

ToMang07 said

That's why I asked. I know there's a difference between "on paper" and real life. I have no doubts that they can move the fuel, it's just the air restrictions I'm worried about. 900CFM is better tho, where'd you get that # from? Everything I have found said 800cfm. I appreciate the response!

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885 cfm to be exact, and the above statements by 74 swinger are correct. The 1200 HP units are based on some form of forced induction. CFM is identical across the board on all units.
On a street 440 that see's occasional track time, you'd be fine, in my opinion, and you wouldn't gain anything by more CFM than 885/900.

now if we stroke that engine, and it's race only, then yes, the 900 CFM gets outran by the CID and RPM of the engine.

again the power ratings are purely based on fuel flow ability. If you outrun 900 CFM...then there's no magic cure other than forced induction to get more air down its throat.