Tremec TKO II w/ 0.82 OD and 3.73 rear end... Mistake?

[Treachery]

Never made it to the track.. The track is a good 70 miles from where i live and "race night" is on a Wednesday.. A good 150 miles from work.

I never rode in a Mustang with 3.55 gears much less one with a 0.82 5th gear.. I figure the RPM's would drop when on 5th.. but how would acceleration be affected?

Thanks.