need new MAF sensor which one should i upgrade too?

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LMAFs are NOT calibrated for any injector size. You can use them with any size you want - with a tune. In fact LMAFs NEED a tune on any car (except a later model Gen 2 Lightning) or it either will not run or run badly. I doesn't make sense to run a 90mm LAMF with 19 or 24# injectors, not because it won't work, but because the MAF will have way too much range for the power you are making.

Gen 2 Lightnings came with 42# injectors.

Don