you can also try pre loading off the line especially with the 24.5x

Tom - have you looked into the lenso drag rims they all have over in the usa? you could get a cheap set with skinnies for the back too. What yonas mentioned would seem the way to go, you dont want to go too big else you could lose time. 13" m/t would also suit for your power but i dont think they would clear the itr brakes?

have a look on honda-tech.com and see what the guys there are running, most will run a 13x8 with the bigger cars moving up to the larger 15" slicks.

Although if your using a 15" rim go what yonas mentioned 24.5x8or9x15 and pre load off launch building some boost

these guys all running 9's on 24.5's:
http://honda-tech.com/showthread.php...=slicks&page=2
launch tech:
http://honda-tech.com/showthread.php...ghlight=slicks

slick sizes:
http://honda-tech.com/showthread.php...ghlight=slicks (prolly a bit large as these guys are running around m&h slicks 25x8.7x13 but they chew thru them with big hp.

rim sizes:
http://honda-tech.com/showthread.php...ghlight=slicks

24.5x8x15 in some good years if you have the $$$