Give the slicks a try first and see how it is, they will be night and day from your street tires. I know guys running leafs with just caltracs and small slicks running 12's in LWB trucks. I see lots of questions on here from guys looking for tips on hooking up cause they spin like crazy on the street but have never had it at the track with slicks. Trust me, if you have a posi slicks and a track prepped with traction compound you'll be amazed how it's nothing like being on the street. Just be prepared, with power and traction there's a price to pay.
It'll either be a dog out of the hole or craps going to break, not a matter of if, but when!