Alright guys I am most likely buying a 306 within the next 2 weeks. It is a roller 302 bored .30 so its not new, cobra recon rods, new crank, speed pro forged pistons with 10:1 compression, new rings n bearings, new oil pump and water pump, new studs, and a trick flow stage 2 cam. I wanna get afr's but should I go with the 185's or 165'? Also which intake and I'm most likely getting a custom cam from ed? Will this be streetable? How will gas mileage be? And what times should I be running? Thanks alot guys.