Something here doesn't sound right to me. 3:23 with a 28" tire gives you like a 3:10 ratio and hitting the rev limitor at 115 mph. Just sounds off to me. What's the limiter set at? Also spinning off the line, once corrected for better traction, will probably have it hitting the rev limiter sooner. Engine should only be turning about 4500 rpm with the numbers you posted. Am I missing something? I'm assuming it's a 727 transmission. If your limiter is set at 6500 it sounds like your not getting third gear.