i have a 92 sc.it has a smaller pully on the charger,full dynomax with headders,3.7.3 gear,built trans,2200 stall,shift kit.i took a friend out for a ride to show him the car.we stopped in the middle of the street and put it to the floor and spun the tires about 2 driveways.going back to his house i did the same thing but it did nothing,no tire spin not even close so i was like w-t-f.got to his house and held the brake and put it to the floor(wot),boost went to 9 psi,2700 rpms and no tire spin..18 to 19 psi of vac in park,trans seems fine(not slipping)fuel is good,rear end is good and vac lines are good.has someone had this problem??no power out of the hole.i can foot brake it wot and only get 10 psi of boost at 2300 rpms and wont come close to brakeing the tires loose.what do i need to look for.did headgaskets a few days ago and its still the same way .all vac lines are good,i sealed the ic tubes twice,changed the coil,plugs,wires,head gaskets,both 02s and fuel filter).i got 15 psi of boost at wot but when this happend ill get a max of 10 so i lost 5 psi some how and a geo metro might whoop my butt from a dead stop.can the ballancer cause this??if not what will??i can give someone my number or i can call them so i can explain it to them better.im just verry stressed out with the car and need help