sounds like 12's should be possible then, i was using worn toyo R888's which were much better than the 'road' tyres i used last time but to be fair everyone was struggling for grip. It was only the second time iv done drag racing and im happy as long as my times get better throughout the day Martyn did have one run in the car, quick little bugger he is, he had goes in 2 other scoobs and beat both the owners best times !