Bigger throttle bodies B series only

[that_civic]

okay, I see a lot of people claiming their 70mm throttle bodies make power but has anyone actually done a back to back comparison yet on a stock b series to determine this ? I don't mean built high compression or boosted engines either.

I want to know because the opening of my edelbrock performer X is slightly larger in diameter than my throttle body so wondering if it would be beneficial to get one that matches or port match mine .

 

[jugbugz]

Not over an ITR 62mm Tb. You dont need it. Lowers street drivability.

Only time you need one is when you have a high comp big cammed B18. Still I wouldnt exceed 65mm