318 build up

If you're looking for a streetable cruiser that runs 12s with a 318, look to at least 100hp of squeeze. The deal is, the 318 simply is small. Like the 302 is. But the 302 in a fox body has gearing and an OD trans. So in order to make the power, you'll need to rev it, meaning deep gearing and slippery convertor. Not a good recipie for a street cruiser. You can get a 318 car prety easy into the high 13s with streetable gearing and convertor with a decent performance rebuild. That is what Rumble is talking about. A static compression around 10:1, and the Enging Quest Magnums with the right cam will give you a very nice street package that is strong enough to take a bunch of NOS. I would look to a forged flat top that I'd run .010 above deck. Factory rods w/good bolts, and the stock cast crank will take 200hp easy with the right piston. Hypers are not the right piston for any NOS use, and I would not run a dome. I'd be looking for a cam that is similar to the XE284H, and running a cam like that with those heads means a little work to the heads. But it's the only way to run a decent cam with them. With the right convertor and a gear around 3.55 it should do just fine on pump gas.