Join Date: Nov 1999
Location: Where the Navy sends me...
Would depend on which course(s) you'll be running most frequently, methinks. You might find that going to 3.73s ends up putting some of your shift points in awkward spots on Track A, but not at Track B. Maybe at Track A, 3.55s or 3.90s would be better. If you run Track A most of the time, and only hit Track B once a year, then go with what works better for Track A.
So maybe hold off on changing the gears until you see how the 3.27s work, and then do the math to see how other ratios would work out?
'89 GT convertible, N/A 357W, MM front susp w/425# coil-overs and Koni D/As, MM TA/PB rear setup (Koni Yellows, 390-430# springs), Stoptech 332mm / 12" Baers, MM 6 point rollbar, Maier 1.5" flared fenders & quarters, 18x9.5" front/18x10.5" rear Enkei RPF-1s (street), 18x10" CCW C-10s (track), etc...