My car is similar, and I'd guess 230 - 250 hp at the crank, but I run 15.00 at the track, so I'd say you'll run a high 14 and maybe a mid if you are really good at driving on the track..... without an exhaust mod or rockers, the High compression holds timing down, which keeps us around stock GTP times until we can add more mods, QuickGT is at the level to take advantage of the high compression..... the 103's may be a little cold, I run cut back electrode 104's and have a little better MPG's
Wait your only running 15's? What's your 60'? Because a tuned topswap car should be faster than a stockish GTP (mid to high 14's).