thats actually a buddy'* GTA in jersey. 350(5.7 TPI auto) Mine is a gunmetal grey 89 kinda rare 350 TPI with t-tops. all years of T/A and GTA in 3rd gen form came with either a 305/5speed or auto or 350/auto. No 350 5speeds unless you build em. Had problems with body cracking at t-tops with the 5.7/5speed combo. Plus it made them almost as quick as the corvettes of the day and would defeat the purpose of the 2 seaters :p. My GTA is dormant for now with 185,000mi on the body, no rust. Needs a restore. Hi flow cat 3' cat back borla exhaust, removed MAF drop in filter, modified detent and TPS sensor MSD ignition my best guess is 255-260hp 340ish ft-lb best 14.233@99.
I take long trips for work, aiming to make the bonneville a killer daily driver