pressure

Hi , What is the normal intake manifold pressure for my 2001 mustang v6? because I want to know if it have a pressure leak with my intake manifold. thanks!

I'm new to Ford. I just bought my 1988 Mustang 5.0 (speed density) about a month ago. I am now have problems with it. It starts easy but when i shift into first and get about 2000 RPM it starts to bog down. I have to keep under 2000 rpm through all gears to keep it from blogging down and shuting...