This spring break, I plan to give my car an overhaul. On my possible to-do list is to bore out the throttle body on my 92 Civic LX. But, I'm wondering is this worth it? Any noticable power gains in daily driving? Does it cost a lot? What diameter should I have it bored out to? I already have a CAI and exhaust. A new header is in my plans for the overhaul as well. Any info would be good. Thanks.