OK so im currently driving a 99 ex coupe, with a swap b16a2, at stops and lights i would vibrate like crazy but when i rev my engine up to like lets say 1.5k rpm it stops... like it get really smooth and the vibrations stop it's doesnt shake while im driving or nothing just when i get to a stop or when im idiling at 1k it's chill also. please help me out broskees

 

Could it be the motor mounts?

 

Idle air valve maybe dirty or timing is off(by turning a distributor to see if it idle smooth).