Suggestions or advice on my Pro-M setup and engine combo

If you've got a twEECer and the flowsheet for the MAF, then you can use whichever one you want provided you punch in the correct flowsheet and injector settings into the MAF table.

If you've got a wideband, all the better, we can dial that puppy in as good or better than you would get from a dyno tune.

Wes

Also, I'm running 4" pipe/MAF in my fender, no fitment issues.

My routing is different than yours, but you can get the idea of the layout:

Last thing - get a WOT datalog and see what kg/hr you are flowing. Also watch the dutycycle of your injectors - let these logs coupled with your future plans drive your decisions on what to get/buy.

Wes

On the MAF, I removed the tire and the fender liner - you can do it by just reaching up into the fender from below but I would rather just pull the liner and save myself the hassle of trying to fish around in there.

The injector timing in EA doesn't necessarily mean your injectors are pegged - I would try to get or look at a datalog and watch the pulsewidth and AFR in the exhaust to make that determination.

So the short answer is that if your AFR is fine now and you don't want to mess with the tuning (some don't care to and would rather just leave power/drivability on the table) then get you a MAF and matching injectors and call it a day.

The other answer is to get whatever MAF you want that will read the amount of air you are pushing (or will push) and whichever injectors you want (or keep the 30s) and just tune it in.

For a N/A 351 I would expect you can get away (and have some wiggle room) with any meter that can register at least 1500kg/hr. The 90mm Lightning is a meter that fits this quite well and is inexpensive.

Lotta options but these are the two that stick out to me.

Wes