As the title says. It starts 1st time every time but if I was to give it a rev then it would just die. If I'm driving along and accelerate, sometimes it runs spot on, boosts perfect but then sometimes if I accelerate the boost comes in to early and feels like there's no power at all and it wouldn't pull you outta bed Fs. Any advice or help is much appreciated.

 

Vaccuum leak? Or something on ignition side possibly