8 dowels are legal. I don't have a rule book in front of me,(it is in the bug) but you should read the rule book very closely, at least twice. Figure out what it says. Then read it again, and figure out what it doesn't say.(terminal end of the cage) etc.
I have a book coming. I am just looking at the bottom end and seeing what I need to do. I'll pick the book apart if I can and see what is legal. thanks. I'm prepping a couple of cases right now and I believe I know what can be done to them. I'm going to send them out for oil squirters next week after I get the gussets welded in and the full flow done.