Vr6 anytime.
Small mods like a filter, exhaust and remap will easily see 190bhp+
It would take alot of work to get an ABF to that power.
Just need some extra suspension work to deal with the extra weight
I'm no expert, but an ABF in a Mk2 with a decent manifold, decatted, and better air intake will easily get around 170bhp, maybe more. I bet a VR6 weighs at least 50% more than an ABF. So... No contest, unless you seriously mod the VR6, and then surely driveability would be compromised with all that power going through the front wheels of a Mk2 chassis??