hey guys this is my first post sorry if i posted this in the wrong place if i did tell me i put it in the correct place but on to the main topic i have a 1989 honda crx si that was imported from japan 3 years ago (we converted it all to american driving style because i couldnt get used to getting in the passanger seat) but the engine is stock excepthe the intake manifold i put chikara chrome there but every now and then when im going down a hill or if i stop the car fast with the front end angled down the car revs up to about 3k rpm and i have to make the car jolt by putting it in a different gear and it idles back down if any one could tell me how to fix this it would be appreciated if you need more info on it just tell me