To make a long story short. Had a stroker motor built by Eddie, +4 stroke and new crank bearings, already had the big bore Only 1000 miles on it. RHC 187 cams, big valves, head ported, and 41 fcr carb, also mrd/sws pipe. The motor started on the first crank, idled fine, checked fluids and went for a ride. In 4th and 5th gear i noticed a noise that sounded like something was loose on the motor mounts or the chain slapping on something, only on acceleration as soon as you let off it stops or when you pull in the clutch it also stops. When you are crusing in 4th or 5th at 3800 to4500 rpms with the throttle just open enough to cruise the churping is there, don,t seem to notice it in 1st or 2nd, some times in 3rd. Checked every bolt on the bike and also took off everything that the brive chain could touch. Put the bike on a jack and ran it no noise applied the rear break to load the motor and no noise.Changed the oil at fifty miles, it looked find. Took of valve cover, valve clearence was fine, looked at timing chain pushed on valve springs, everything looks fine. This is driving me crazy, the bike runs fine but i spent alot of money on this project and i don't want to screw things up. Need some suggestions on what to look for.