2700$oarer

alright... i decided to upgrade my octane and my car was jus roaming around fine.... Till I floored it... It went vroooooom and then there was an awful smell of gasoline lingering in the car.... still ran fine jus that awful smell.... does that mean I have bad plugs? My car is a 93 Sc400 on 20's.... and yes i know i went to big on the wheels.... thanks...