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Can we get some further info? I think what you are saying is you got those numbers by changing the exhaust cam, slightly porting (sounds like you cleaned up the rough stuff on the intake, right?), adjusting the ignition (would like to hear more on this), and changed the carb setup? You say 'a Weber', so does that mean you have modified to have a manifold to accept a single carb?



This mod was actually done on my '02 Bonneville, which has the 360 motor.
What I did was swap out the existing exhaust cam with a new stock intake cam. Cam timing was done visually to match the cam timing that the previous exhaust cam had.
The intake cam has slightly higher lift, 0.1 mm I think, and 2 deegres more duration compared to the exhaust cam. I possibly also got the opening time slighty earlier since max torque now comes sooner than before having done this mod. But this is just a guess, I haven't yet measured the new exhaust timing. But the bike runs quite well though.

The head was ported (only on the intake side) to clear some passages and otherwise as you say, clean up the rough stuff.

The ignition was altered to have +3 on the upper part. I actually have full advance as early as 2500 RPM.

When I dynoed the bike I had a Weber on. Now I have a dual Dellorto. Performance is about the same but driveability is better with the Dellorto since it has more progression holes, giving a smoother transition from the low speed circuit to the main circuit.
I did my own intake to match the head, yes.

FD