Originally Posted by Davezilla
That's the same intake my engine came with when I got my kit, I ended up putting it in a lathe and bored it out to 15mm because it's only got a 13mm opening, After it was bored out to size I went in and match ported it to my intake and it works great so I'm still running it. Before I bored it out it was noticeably smaller than the carb's barrel size.
Exactly. I took a standard drill bit I can remember what size and just used a drill press on it. Then I ported it to be nice and wide. Still quite a bit better of a set up than the welded intake though.