Bonneville America Forums Forums Technical Forums Performance Mods To much infomation running around my head!?!?!?

Jimmy,
I have a 2004 Speedmaster also.
I have Tpipes.
I had the bike dynoed with the snorkel removed & stock jetting<120 mains>.
The bike pulled 64.1.
I then had it dynoed again with 125 mains & thruxton needles.
The bike then pulled 67.8.
NBAD are the stock needles.