Originally Posted by rbh261
I may be missing something, but tracing my vac lines my fuel pressure regulator is connected in front of the throttle body. It's even shown that way on the vacuum diagram. I'm confused.
Either way, the lower the vacuum/higher the boost, you'll get more fuel pressure, no matter before or after the TB.
But anyway, an aftermarket intake will not change anything drastically enough to cause fuel pressure problems.
The only problems that could arise are not enough fuel and too much air, but that doesn't usually happen with an intake upgrade only and if you have that problem, it wouldn't be because your new intake increased vacuum.