It’s been a while since I’ve had to think about this....
You’ll need a throttle body off a TR/TS magna 4cyl IIRC.
Your stock one should be 50mm, but the magna one is 60mm, so you’d need a bigger gasket and to grind out your manifold to match the bigger throttle body. Otherwise you’ll have to put up with a funky idle.
Also you need to find out if you’ve got a 3pin or 4pin TPS, I can’t remember what the go is getting around that if they’re different.
Any gains you get will be very minimal, not really worth it for the time and effort.