I'm considering building a 402 for my '67 camaro. I would like to be able to drive the car around town here on the weekends, an i would like to run low 10's of high 9's with it. What mods would you suggest for this engine? I have a th-400 transmission and 4:88 gears. I'm not familiar with the modifications needed to make this kind of power with a big block, i've always had "mice." Thank you for any input.