Ok, I swapped a 98 b18b into my 90 teg, the car pulls throughout the band but my friends 90 tegs are killin me. It just feels like somethings restricting it.

So we suspect its an exhaust flow problem. I have the following: 4-2-1 ractive header, gutted cat, 22" resonator (due to excessive noise levels) , N1 knock off muffler.

Now, when i changed the motor and took off the header, i had about 1/8" of black soot around the opening in some areas around the holes, meaning the holes arnt lined up , so i ported the openings out

could I also be losing power and flow from the gutted cat?

sorry unable to take pics car is at the shop for heater core install