Email addy for TTI?...and '67 273 install?

Does anyone have an email address for TTI exhaust? I looked all over their site, and they only list a phone number or snail-mail address.

Also, has anyone installed one of their manifold-back systems on a '67 Dart 273? They say they cant supply pipes for the stock 1967 273 left-hand (driver's) side manifold. Huh???

TIA