wow surprised to see this thread. Ive been in that car when it was completed many years ago. The thing is like a rocket, superb handling and sticks to the road like sh!t on a blanket. At the time i was nearly ready for paint and Sean wanted to give me an taste of the tcp setup which is what i have. All i remember was flying down a windy road with a roaring engine. Left a big smile on my face!. From memory the engine was a boss? or to spec?
anyway already some good advice on direction
Good luck im sure you will sort it out with minimal effort and costs