A little late to the game, but maybe it will help someone else...
My -4 runs a Superior XP-O360 Plus (XP-O360BAC2) carbureted spinning a Sensenich 72FM8S9-1-83 prop inside the original cowling and I'm still using the original pants. She's pretty much stock.
At 2400 RPM between 7,500 and 9,500 we seem to tick along between 180 and 183 mph TAS in smooth air. This is pretty consistent. I typically cruise at 2350 and see 172-175 mph TAS regularly.
At 2500 RPM same altitudes I see 190 or higher, but I seldom run that hard. It gets loud and thirsty and a little too speedy for my comfort level.
I have taken her to 2650 at near sea-level on a reasonably cool and very smooth day and was flirting with 210 mph TAS, which is Vne on mine. Never feeling the need to spin her out, I have not gone to or through 2700 RPM so I cannot say if she is WOT. Having said that, there was a fair amount of throttle left at 2650 so yeah, she will likely go over 2700.
What scared me early on was flying at 11,500 one fine warm day before having TAS (steam gauges back then), I was really happy seeing 174 IAS at 2500 or 2550 (memory fails as to which). This equated to 214 TAS, 4 mph above Vne. Point is we can easily and comfortably exceed limits without realizing it. Since installing my G5 I regularly go into the yellow above 2450 and occasionally get close to the barber pole when conditions are right and running 2500 RPM or better, especially at altitudes of 9,500 and 10,500. I do love this airplane!