I have deleted a few,replaced a bunch of convertors,the only true difference I have seen is when the convertor was rattling around inside itself. The carbureted cars/trucks were hard on cats. Too rich and the raw gas would burn the insulation up that surrounds the guts,then they just rattle around inside of the shell till they break up and plug the muffler with little pieces of high dollar stuff. We tried about every combination you can think of,no mufflers,no convertors,split and run dual exhaust with two convertors.I had eight tail pipes coming out of the bosses Chevy pickup(no mufflers). One 89 Chevy it was headers,2 cats,weed burner exhaust, dumped in front of the rear tires. AS long as the engine is running correctly, we never saw any reason to remove the cat except to make more noise. WE had lifts and a exhaust pipe bender. I miss that bender!
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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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