Originally Posted by Megan370z

I have seen vacuum building up in the top end, this is why I ended going with an oversized TB which proven gain. Twice

the 266G/sec is the max number on the Uprev table. the way it was explained to me in the beginning was that as long as you can give fuel with the MAF Table the G/sec is kind of useless

this is a copy/paste of one of my concern on this topic with Jared @ Uprev

I don't think I've ever seen the g/sec go down while the V was rising, but I honestly don't usually look at the g/sec since that parameter becomes totally meaningless once you change the K fuel multiplier for a different MAF or injectors.