car wont rev over 5000rpm

[bmart]

@simplemind7

I’ve had a car act like that from spark blow out. Spark plug gap was too large with the boost raised. It wasn’t always exactly at 5000rpm, but it was in around there. Would only do it under full boost.

Can we have some more info about the car’s setup?

Threadjack
if the spark blows out, would a wideband read rich or lean? I’m curious because my car is acting similar to this. /threadjack