after a nightmare of a time with this car, just about everything ok except for map voltage shows high which i understand is low vacuum. have a new map sensor on and have replaced the hose to it. is there any other notorious spots for a vacuum leak? everything appears ok. thanks for any help.

 

or what car are we dealing with???( not a VW bugI hope) , more info needed

 

thought it would be understood that it was a 1990 corvette and not a vw bug. after all, isn't this a corvette forum?