pulled tractor tonight it looked pretty good got 5th out of 21 with some tractor that are pretty hot tractors.I changed plug and wires. took off carb and cleaned it. Question now is what about electric ignition kit and hotter coil like here . Also a guy told me a 770 manifold would give me around 5hp maybe like there are two here <!-- m --><a class="postlink" href="http://www.waltstractors.com/acatalog/Walt_s_Tractor_Parts_Oliver_Manifolds_1360.html">http://www.waltstractors.com/acatalog/W ... _1360.html</a><!-- m -->