Anyone know the difference between a Series I blower and a Series II, like what did they change to gain 15hp? did they port it? change the design? Could the internals of a series II fit a series one shell? is it worth the upgrade to buy a series II and sell the series I? if its just porting then if i ported it, it would be just as good as a series II right?
Where can i buy a series II, just the head unit?
Where can i buy a series II, just the head unit?
