thick problem!!!

halllooo I hope you can help me a lot further I have a calibra 16v with a racing jump and my problem is if I get over 5 thousand turns and come to the 180 starts to jerk my car as if you would hold me quite funny the 2 thing is when I drive half an hour I burn my legs at the console in the furaum!! the heat cooler becomes so dermasen hot that after a certain time you can no longer hold it out in the car. and this jerk is but only if my car is fully fuelled if the tank teacher is not that strong I hope you can help me there what that could be many thanks.