Aside from opening it up to accommodate say 63mm throttle plates, I think simply grinding out the horn a bit could be stopping short of what might be the better approach, i.e., something like the venturi horns on the Webber carbs maybe???
Something I've been thinking about for a while now...
I like the sound of a "cammed" motor too. BUT, I like the surprise factor especially. Whatever pumps up the performance w/o tipping anyone off...heh, heh, heh....
