Ok, up until now I thought it was supposed to be like this but, i guess not. The vaccum on the car is at about 12in at idle, boost will only go up to about 9 lbs at WOT. The only time i have seen 20 in on vaccum is after WOT when it comes back. I checked for leaks with soapy water and found nothing. What else would cause this? Car btw is an 89 xr7 w/ CAI. Car has trouble starting, until it warms up then its ok. But the boost problem is still there.