Here's my craigslist ad:
http://toronto.kijiji.ca/c-cars-vehicles-motorcycles-motorcycle-parts-accessories-CB750-SOHC-Header-4-into-1-W0QQAdIdZ193613361
Asking $150
http://toronto.kijiji.ca/c-cars-vehicles-motorcycles-motorcycle-parts-accessories-CB750-SOHC-Header-4-into-1-W0QQAdIdZ193613361
Asking $150