I have a problem with my TBTS i dont have that great top end speed while comparing with Thunder bird so i want to find a solution for it to make powerful than TB. TB has got 18 BHP and TBTS has got 19.8 BHP so i wanna know the reason why my TBTS has not making that speed ?? So Kindly please help me out with this problem. call me if any solution for it to my number 9886777778