Well, you have the DOHC motor, right? I'm sure that helps. My 3.5l feels wheezy over 85mph, lol!
What do you think, Ray? 33's or 35's?
To reduce the wheezy feeling upgrade to the 4.6x:1 r&p's from a 94-96's SR. IIRC, 97's w/ a locker may also have those gears but i can't recall when Mitsu changed to 4.2x:1 r&p's.
Forget 33's or 35's. Get 37's or even 39's LOL!! Seriously what will be your long term intensions for the rig? If mostly expedition type wheeling, the smaller the tire the better. Keeps COG lower and reduces gearing ratio loss and keeps wind resistance down. For hard core stuff like rock crawling, I'd go a minimum of 33's and 35's would be highly recommended to keep the clearances as high as possible.
FWIW, I've been looking for a set of used 32's for street use so I can reserve the costly 35's for wheeling only.