70 dart swinger slant turbo build and mild restoration
You don't need a turbo for 150hp. The standard hop up stuff will get you there.
According to the online program called "Wallace Automotive Calculators," a source of performance-related numbers that I have personally found to be reasonably accurate, that 150 horsepower will put a 3,200-pound (including driver-weight,) vehicle through the quarter-mile in 16.15 seconds @ 83+ mph.
If that's enough performance to satisfy your desire for a faster car, you can save yourself untold grief and not a little money, by avoiding forced-induction, entirely, and get your increased performance with some traditional bolt-on hardware, such as a better cam, more carburetion, higher-compression through a milled head, and a set of headers. I think just those mentioned items would probably get you the 150 horsepower you'd need to run low, low 16's.
Good luck with whatever path you choose...:cheers:
