That kind of horsepower from a 283 is doable, but bring money- - - - -lots of it! More than one HP per cubic inch takes most engines out of the "street driver" category and puts them into the weekend cruiser or full-competition realm. You'll need forged pistons, a compression ratio that will limit you to racing fuel as your only option, and it's unlikely you'll be able to run an automatic transmission without a high stall speed torque converter that will turn every stop sign into a tire-smoking launch whether you want to or not.
I built my first small block Chevy back in 1962, but it was a 265, not a 283. Since then, I've probably built or supervised the buildup of a couple of hundred of them, maybe more. If you'll drop back to a 250-horsepower build, it will be a lot more streetable, and the cost will be just about cut in half. One thing 283's do very well is make lots of RPM, so with the right gearing, high horsepower isn't really necessary for good performance. One of the fastest road cars I've ever driven only had 255 cubic inches, but it ran over 180 MPH.
Jerry
