stoppsy

I have a ba boss 260 what's the standad size throttle body is't 70mm or 75mm? is it worth goin a bigger throttle body 80mm or an 85mm? i'm thinkin of goin a helix power spacer if i go a bigger throttle body.

swanee

helix spacers are a waste of time and money. They may increase the power slightly, but overall not worth it for the price

Get the car tuned. With the engine tuned you wont need to change the throttle body.

My xr8 has made 244rwkw with full exhaust, underdrives and air filter. Using the standard throttle body and induction. Alot of forced induction Boss engines still run the standard throttle body.