How would you build a low 10’s street car

A low 10 sec street car is not only a very serious and expensive car to build you'll need the knowledge (or a real good friend) to service it. IMO a low to mid 11 sec car is more realistic especially if anything resembling ok fuel mileage is concerned. Mine 68 Cuda weighs 3640 with me in it and just breaks into the 11's but is a very mild 408 build. I feel the fuel mileage is good for what it is but rarely gets better than 13 and that's when I let the wife drive it