road rated slicks

Hi all i am planning on taking my 1969 dart swinger to the track this summer .It is a restored 340 4 speed car. Still running the 4 inch bolt pattern. has anybody used these tires and what size of a rim should i be looking for . I found a set of 15 inch x 7 small bolt rims on Ebay for a good deal how big of a tire can i use for this rim? Or should i try and find an 8 inch rim . Also what size of an offset should i be looking for to fit properly under the car. Does anybody out there have a set of tires and rims small bolt pattern that they want to part with for a reasonable price.
regards

You can safely mount 255-60x15's to those wheels and I'd go with ET Street Radials for the track. To make sure that they will fit in the wheel well you'll need to know the offset of the wheels you're buying and take a ton of measurements or quicker yet try to scrounge an old 255-60 and a tire shop and mount it and try for fit in the wheel well. Remember that the rearend width might not be stock original so you can never be sure till you try.

Terry