Hi guys I've been running my s2 in over the last couple of months, now I've started giving it a bit of stick I've noticed a flat spot at around 3800rpm and the car doesn't like full throttle it seems to hold back. I bought the car as a non runner so I'm uncovering issues as I'm driving it! I'm hoping it just needs a set up so my question is where should I go within a reasonable distance of Bedfordshire?