That motor isn't anywhere near needing a larger MAF. You're feeding swizzle stick intake ports with a sewer pipe intake tube, the MAF is not the problem, nor is it the solution.
The MAF measures incoming air. It sends a signal to the computer relative to the amount of air passing through it. The computer reads this signal, and based on a table made specifically for the stock MAF calculates the amount of fuel needed. Changing to a larger MAF which will be measuring a larger amount of air for a given signal output than the stock MAF throws things out of whack.
There's very little you can do to that motor that produces worthwhile results for the money spent. Sorry, but that's the way it is.