I'm running 58 pilots and 118 mains in my Corsa with Staintune Jota type copies, have been for donkies and it aint never had an issue even when running at WOT in the territory for miles apon miles.
Suggest you have a real good look at the rubber manifolds one of mine finally split enough to start ingesting unwanted air/loosing vacuum seems nought lasts forever
Suggest you have a real good look at the rubber manifolds one of mine finally split enough to start ingesting unwanted air/loosing vacuum seems nought lasts forever