Turbo slanty project?
I once turbo'd a L6 for a grand total of $450, including the 409 stainless exhaust & muffler. It can be done on the cheap. The '73 Dart I did ran like a low-comp 340 at 10 psi and managed 23 mpg on the highway.
I used the Garret turbo from the '85-'89 Chrysler 2.2, 318 truck 2-bbl (exact specs elude me at the moment), referenced the stock-style fuel pump to boost (new fuel pump of course), and made a bonnet from a Mitsubishi carb hat from the '81-'83 2.6 minivan/New Yorker engine.
Mike