Technical Ford flathead exhaust flanges

I'm looking for a accurate pdf or drawing of a ford flathead exhaust flange.

 

Me, too. Did you ever find one?

-Bill

 

Don't have a drawing but I got our flanges from Speedway. Very nice pieces and the headers turned out well....

 

Draw your own

 

I'm about ready for the exhaust and not sure what size tubing to use? It's a 296 ci 59 AB block with an Isky 400 jr. cam and 4 two venturie throttle bodies with Excel computer. I'm not sure what size tubing to use but I'm going to put a set of 3" cutouts to run on the outside under the doors. The project is a '48 Ford F-1 with AirRide suspension, dropped axle and quick change rear end along with some other goodies. It's been so long since I really built anything that I've forgotten more than I ever knew, if that's possible? I'm thinking 2" or maybe 2 1/4" but not sure. Any suggestions?
Jim

 

Don't think you want more than 2",maybe 1-3/4"

 

Here's a set I built 15 years ago with 3" collectors and 2" outlets for ex and made em so I could remove starter if necessary and clear steering ........ 2" ex and 21" Smitty's. like it a lot

 

Since he posted that January 14, 2014 I'd say he did.
On your quest, contact Hellsgate Hot rods Good people who are here on here HAMB and make some great exhaust pieces. http://www.hellsgatehotrods.com/ They also have the bends and tubing and cones if you need them.