I vote for:
300ZX Twin Turbo
Supra Twin Turbo
RX7 with a 20B
Ultimate Import Drag Cars... hands down. And they can certainly keep up with and annihilate your Drag V8 with less displacement, and less or no pistons!
It would be cheaper to put together an old Domestic though... been around for years and the technology has barely changed. Means less $$$...