2.4 lt big four Exhaust ?'s Options

[JRust]

I bought nice set of SS HE along with a dual tip Triad Muffler a while back. I got them from John Kelly (Ghia Specialties). He had them on a big 4 also. Just wanted some input as to wether these will be sufficient? I would like to retain my heat if possible. The carbs are 48 weber's I believe. Not sure on the jets or anything yet. Bought the engine from Craig at Camp914. The only problem is we don't have any build info on it. I figure to put it in & see how it feels/runs.

This may be a dumb question but it was built off a GC 2.0 engine. Are the spark plugs different when you build a big 4 or do you still use the stock plug & gap? Obviously this is a new arena for me with the big 4. Any advice is much appreciated. I am hoping to put it in early next month. Just getting to prepping/fixing my engine bay while it is empty (IMG:style_emoticons/default/blink.gif)

[JRust]

The heat is not all that critical. It would be nice but heck I usually only drive if I can have the top off anyway. Having said that I will try my SS HE first & se how it performs with the triad muffler. I really don't know that much about the engine or it's build. So really the whole thing is kind of a crapshoot. I may be wrong on the Weber 48's. They look big to me so I just guessed. I'll get the numbers of it & find out for sure.
On the plugs? Jake do you just use a stock plug? How about the gap for them? I guess I'll run what is currently in it to start & see what happens. With as little as I know about the engine I need to just get it in & see if it will start. The figure out all the fine tuning by how it runs or if (IMG:style_emoticons/default/confused24.gif) . I'm a little over my head with it but it will be a good learning experience (IMG:style_emoticons/default/idea.gif)