enough boost is when you have 3 dimple marks in the hood from the valve cover nuts..
On my old mk2 I could hit 1200 no problem, but....I had tons of fuel. I build pumps as well that one would about droun the engine if I wasn't careful. Used injector tips off a CASE backhoe.Was also running a huge front mount and a hybrid kkk24/26, full 3" turbo back.Anyway, I ran the ARP's in the first post with a MLS gasket and hit 40psi several times, oftin ran it at 30psi sustained. I detuned that engine quite a bit when I sold it so it would be easier to drive. It's still on the road blowing smoke today...He actually has it for sale I think.
Even a mildly tuned vr would be seen in the rear view mirror, never tracked it but I did run out up against a couple 318's and several hondas. the only car that ever really challenged me was a really built WRX. We ran out of road and bothh of us have the other thumbs up...
was it a coupe in york pa?