Classic Inlines has just introduced an aluminum head and several designs of removeable intake manifolds for your 200 ci inline six.
Classic Inlines also works with a company, McLearran Racing, that, I believe does R&D work and engine builds.
The October, November and December issues of Mustang and Fords magazine did a complete build of an inline six 69 SportRoof complete with a turbo. Great articles, They do a complete build of a
Trans Am style racer, but fully streetable. I love inline sixes that run strong.
Here's the web addresses:
Classic Inlines Performance Parts - Home and Email only for McLearran
nocancer@msn.com Phone # (520) 797-3530.