smaller throttle body

[oldwirehead]

Can you mount a smaller throttle body on a 70mm Precision Plenum without a problem?

 

[DailyDrifter]

Yes, you can run a smaller TB.

 

[bison]

You have to be careful of the gasket since it will be difficult to get a big enough mating surface to sandwich the gasket sometimes. So castings are a little different than others.