Alrighty i have a 1990 turbo11 rx7 it is sqeaking when i first start of and also when i down shift into a higher RPM range. IT has a after market clutch but i am nto sure if it is that or something else. O also having a vacum leak problem is there a common spot for this to happen or should i just start looking at it all?

 

Squeaking or squealing like a belt or water pump?
Vacuum line could be anywhere. A propane torch works pretty good to find leaks.