a .028" gasket will not work with a 0 deck clearance. Too tight.
any all shipping from Summit and Jegs, Flatlanders, Competition Products,,, and Factory Direct from Profiler, Brodix, Comp, Lunati etc
GeT the stuff ground shipped
"shipped to the Border" go pick it up yourself and import yourself. (13%HST)
You can get a "account" with them usually a flat rate. Or pay a flat fee per package. For receiving/holding your packages, for pickup.
You just drive down and pick the stuff up declare, and pay HST at the Canadian border.
its goof proof simple to ground ship to the border and import the stuff your self.
Ogdensburg, New York (serving Ottawa and Brockville area) | Ship to the Border
This is Closer to you than "your Guy" in Montreal. Now you can shop around.
If I was going to start with a Dart cylinder head I would start with the 215 cc port Dart or the 230cc port Dart head ( for power)