I can't prove with hard data that the stock maf runs out at 300fwhp but that was the estimate the we got with data logging at the shop. At 270 hp a cougar was near 90% maf max voltage. I made it to 290 so 300 is an educated guess.
As for the chip, no problem. With the emanage Tom, I just need to get you in the ballpark and you can dial away till it's the way you want it.
If the BOV is giving you an issue, unscrew the end. Watch because the spring will jump at you. Put a few washers in to tighten the spring tention. This will help with any backfires that you may have.
-Chris
