i think that your not translateing correctly. brase is a method to join to metals togther with a sodder.
Braze is a high temperature "soldering" method using Brass or Silver alloys. Brace is to support or stiffen using a moment arm attached to the piece being braced. Brase is a mis-spelling of everything.
You dont really need a lot of extra support for only going to a new style five liter. Just make sure you put your shock tower supports back on. I dont know if all V8 cars had these but I know the V8 gt's had a lower support bar. You can add that assuming that your framing has the nuts inside the frame for it. I noticed that some manual steering cars dont have the nuts welded in the frame for the power steering brackets so possibly the lower bar support may have the same issues, maybe someone else that knows can chime in.
brace yeah, sorry about the spelling. that wasn't my best subject. :] but yes i ment brace because now i have a 5.0 with the efi. so the old braces will not work so i was looking for some advice for the bracing from the shock towers to the fire wall. and maybe some pics.
Sounds like you are talking about the shock tower braces. They must be hitting the EFI intake. I have seen pics of cars with the Mustang style EFI, but don't remember what they did for shock tower braces. You will probably have to custom build them out of tubing and heim joints. http://www.speedwaymotors.com/ has lots of threaded tubing and heim joints to choose from, so you should be able to find something that will work for you.