jaxxed

i hear a Crower 15511 cam and Trick Flow Twisted Wedge 170 heads will work with a 88 LX speed denstiy car. is this true? how much horse power will i gain from this combo? i also have a upper/lower edlebrock intake, exhaust/headers, and the usual few other minor bolt on's. should i also throw in some 4.10's? im not concerned about gas, or top speed, but i often race from a 60kmph roll on the highway to the city i go to once a week. will 4.10's improve or hinder these races?