Choking/Stuttering under boost in 3rd, 4th, 5th
 

Car runs fine under boost in 1st and 2nd gear....when under boost in 3rd, 4th or 5th seems to stutter or feel choked up.....

Was running fine for several years..before this happened.....any suggestions...

Have you checked the plugs? do you have logs? can this be a bit more vague?

change your plugs.

Thanks for the advice will do next week after come back from vacation...or i'll turn down the boost a little to see if it is just spark blowout....

Back from vacation, new plugs did the trick....