17-12-16, 09:30 PM
After lots of similar problems to you I finally bit the bullet a week ago and disconnected the exup cables and replaced the exup valve locked in the open position. Was expecting a big drop in low down responsiveness after reading up on it but it's barely noticeable - think there's a slight delay when suddenly opening the throttle below 3k but that's it. Wish I'd done it ages ago!