I agree wholeheartedly with Schmoo.
If you're building a drag slut, why put yourself at a disadvantage by sticking with FWD? Hell, a DIY turbo KA24DE will be a better candidate than either the DC4 or BB1.

Trawl the LA craigslist classifieds and you'll find a dozen S13's and S14s for sale. I'm still kicking myself for not test-flogging an S14 before buying my DC4. Someday...maybe.