Brother did a lot of his welding with a simple spool gun - turned out great in my opinion and allowed for purchased SS headers, BBC of course. He has 2 88's hung over the rear axle with Fast XFI on E85.
I'd go with either 2 88's or a single 106mm... thought about it many times, but I like the eye candy sticking through the hood - even if it is slower!
Gdlk!