I have my 1/4 ET down to 14.2 at 99 MPH, but my 60' time is still 2.2....So i am going to get a set of DOT "slicks". I have a bunch of 15" rally rims that are 8" wide, and i am looking at the Hoosier "Quick Time Drag DOT". My question is should i go with 275/60/15 OR 275/60/15 and will these rub and fit properly?? I currently have 235/60/15 BFG radial T/A's and I just cant hook up out of the hole. My '67 also has a 74 Nova 8.5" 10 bolt w/ 3.73. Thanks for any help.
With the right backspacing 275's are about the biggest tire that will fit the rear and inside the wheelwells on most 67 & 68's.
Backspacing should be 4.5-4.75" on an 8-9"wheel.
I made a cardboard template with all the measurements to check for issues, and they'll fit without problems on my car and have seen alot of others with them too.