3.55 or 3.91

I had a 318 w 360 heads. 3.91s. Freeway was a little painful after 10 miles or so. Around town was totally great. Where you driving it? Oh, mostly the track. Definitely 3.91s. Especially with a 27" tire. You will really need the 3.91s on the track. Friggin dual 2.5" pipes with an x pipe.