hey guys i have a 94 gc8 2.0L. recently i start noticing something weird while im doing a pull from 2nd gear all the way up to 5th.. i would start doing the pull around 4k rpm around 2nd gear.... and when i throw it in 3rd and still do the pull.. it would feel like as if it hits the speed governor... it happens around 4 or 5k rpm in 3rd gear... i would feel like a complete shut off/jerked and then split seconds later the speed would catch back up...and does the same thing in 4th gear as well.... anyone has any clue what im talking about?? i've never experienced this problem before... i just changed out my pcv valve and my spark plugs too... (pcv valve was clogged up) spark plugs were kind of black when i took them out (didn't do the gapping on the new plugs, just regular NKG laser platinum) any advice or help would be greatly appreciate...