Go West !!
I'll let you into a secret. Seems there's a wild and mystical land not far away....it's called Wales.
A4069 Llangadog-Brynaman : featured in 5th gear ,Top Gear (Clarkson in the Mercedes Black) and the sadly discontinued Performance Car magazine. I loved that mag and they've dumped it !!
A488 Knighton-Penybont : challenging bends and long high speed sections.
A4212 Bala-Trawnsfynydd : long sweeping bends,up and down like a rollercoaster,superb road surface.
B4391 Pencraig-Bala : if you think you're a talented driver then this road will knock you straight to the back of the class.
If you can survive the perilous ascent/descent at either end without falling into the abyss to your left,you're faced with an appalling road surface with adverse cambers,tight switchbacks and very sturdy cattle grid posts waiting to punish any mistakes....that's assuming you haven't hit any of the sheep wandering down the tarmac.
You can't overpower this road.....you need a brilliant chassis,ability to balance a car correctly....and lots of bottle.
It's the only road that I genuinely get nervous about attempting to give it some welly.