|
| Chart Key | |
 |
Horsepower |
 |
Torque |
 |
CO% |
 |
As below plus needle jet replaced, modified OC-series needle & tuning (at 12.5% throttle opening) |
 |
Rebuilt engine with gas nitrided positive twist top ring, bronze valve guides, single point cut valve job, valve springs squared, detailed & shimmed to target seat pressures, throttle slide over-travel corrected, JD jet kit, and triple layer (stock filter, dust cover & filter skin) air filtration (at 12.5% throttle opening) |