I'm 6'5" and fit in my -4. The key seems to be how much of your height is your "sitting" height or how long your legs are. I moved the seat back about an inch in the front. You are limited in how much you can do this without major mods due to cross brace interference of canopy with roll bar, rear stick with seat back, and other issues. I sit on thinner cushion and with headset I almost touch the canopy. A strong gust will have my head contact the canopy.
It is snug and I have standard instrument panel (no lower extension) and legs just clear the bottom. I've flown 1100 mile days without too much fatigue but find 3 hour legs are about my limit before I need to get out and stretch. That is comfortable range with reserves so it's not really a limitation.
Bottom line is: probably you can fit but it will be snug. I'm 220 lbs.
Best way to find out is to sit in one.