To avoid troubles you need a set of heads off a Windsor style block. The 289 and 302 heads have very poor airflow. The cheapest move is to get a set of the LATER Explorer 5.0 heads. These are improved versions of the GT40 heads that have the spark plugs angled for superior burn (more power and lower emissions) and being cast iron are pretty cheap.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
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