I have a 90notch too, (an ex THP car) 5spd, my first time out was a mid 15 and i pretty much embarresed myself, but it took more than one trip to the track to get where i am now, and a few light mods with 14* timing. I will say this, my friend in a stock lx went from 14.6 to 15.2 when he put 3.73's in, i dont understand either but it happened, but since you have a cam you should be alright.
and like killercanary says, drop pressure, i had 20lbs in my 225/60's when i ran my best, also if you like dragracing which you obviously do....pull the front swaybar, you will be surprised on how the front end will come up and distribute weight, especially in a coupe
Keep posted
oh, and with the same size rear tires i have cut a 1.9 60 with a little vht on the track, but this would never of happened with the sway bar on.
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90 lx coupe: Mac cold air fenderwell, accel supercoil,advncd ignition,3-core radiatr, FMS alum D/S, Black magic fan, 3.27grs, 3chbr flows.
Best time: 13.9116(on 225/60/15 firehawks)
Best mph: 98.17
Best 60': 1.9607
next mods: subframes, mac h-pipe