I don't think the stock MAF was much of a restriction (more likely the lower intake was), but the 76mm won't hurt you either.
Double check the C&L site to verify you have the right cal. tube for your MAS, Computer, and Injector combination.
If you get this wrong you can have big problems throughout the rpm band.
I have most of the C&L tube sizes on my site if the color code is missing.
Don't assume that no color code means that it is a clear tube. Double check the diameter.
I have had C&L send me the wrong tube before, so it is worth checking.
Congrats,
jason