Here is the problem, from quarter throttle to around half throttle it pulls like a ported banshee should, but from around half to full throttle it is real flat not much left. I wolud like to get your opinions and solve this problem, could it be my pipes? jetting? reeds? Whats your thoughts.
Setup:
just had my motor rebuilt and ported by a well know builder here in AZ, he trued and welded the crank, new top end, re-shaped and milled the stock head, and dune port. advanced the timing 4 deg. builder told me to setup my stock carbs with #30 pilot, #380 mains and needle clip set on second clip from the tapered side, reeds are stock and I'm running the toomey t4 pipes, 13/43 gearing. Air cleaners are clamp on K&N no airbox. mix is 32:1.
Elevation in AZ is around 1000 ft do 90% of my riding at Glamis.
Thanks in advance
AZshee