wont pass 2k rpm?

[ill cuhz]

Pre 89 and post 89 are two different animals. Try getting one for your specific year and installing it then calibrating it.

question.. i have a throttle bodies for both pre and post 89. Should i choose one over the other or does it even matter which way i go??

 

[IndigoMKII]

As long as you get the same parts.