DP935,
I asked because I'm running the 3.31 too, with a w/r Toploader. Also, runing a bigger rpm cam comes into play as well if your engine runs well at say 3200rpms with no strain. It works well from 1-4, and every once in a while, when wanting to cruise above 70mph for sustained periods of time, the extra 5th would be nice but not an absolute requirement.
I believe if you are planning to drive your car more than 50% of the time on the freeway, then you will probably like the new TKO 600 better. If you drive less on the freeway, like 20% of the time, the Toploader is a great choice. I'm considering trying a TKO 600, but have not done it yet because I realized that I don't actually drive that much on the freeway except for a few times a year... What I like so much about the TL is the gear spacing and the butter shifting vs. the ratchet shifting feel of a TKO.
Decisions Decisions.
