...Westwood is also good and we used it several years ago (I think Top Gear went there on one of their American adventures) should be a blast in 65's. Plenty of run off room...the only problem is that being a desert circuit the run off is sand...
Westwood was (it's been gone since 1991) just northeast of Vancouver, British Columbia, in bear- and moose-infested temperate coastal rain forest. You're thinking of Willow Springs (California), I believe.
Westwood would be a good replacement for Dundrod, imo, though the GPL versions really don't impart the banking that the Carousel (T2) had (35 degrees!!
) or the elevation changes that were there in real life (coming out of T6 onto back straight was 80 foot climb, then 120 foot drop into hairpin (T7), that usually had a river running across it, track was nicknamed Wetwood for a reason). I raced a 1986 Yamaha RZ350 (known as RD350LC YPVS in UK) there (amateur, and rather unsuccessful) in '89 and '90.