Cool 14 min video on the GMC Syclone and Typhoon. Ignore the website reference at the end....we all know who really supports this community - ISTR.
https://www.youtube.com/watch?v=iuOr...9XEEqGwU5NtPhQ
https://www.youtube.com/watch?v=iuOr...9XEEqGwU5NtPhQ