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Author Message   2003xb9r Posted on Saturday, January 12, 2013 - 02:51 pm:        Hi, does anyone have a detailed spec sheet for fitting compression releases to Thunderstorm heads? Any help much appreciated.   Lakes Posted on Saturday, January 12, 2013 - 11:23 pm:        i don't think you would need them on 74 inch. also i don't think there is anywhere to mount them. might have to weld a thick spot to put one in. i have a 95 inch twin cam Dyna that has 225 pound cranking pressure & i have the decomp valves & it needs them or starter just goes south quick. But i have a Buell with thunderstorm heads 215 pound cranking pressure & it just fires up instantly the starter does not seem under any stress to turn it. i will be adding bolt in cams soon that will drop c ranking pressure some, or its possible to advance the intake cams a few degree to drop cranking but you loose low end grunt.   2003xb9r Posted on Sunday, January 13, 2013 - 03:47 am:        Thanks Lakes. It's actually an 88" being rebuilt. I want to ease the load on the starter & battery if possible.   Buellistic Posted on Sunday, January 13, 2013 - 03:12 pm:        There are such things call "COMPRESSION RELEASES" for high compression engines so they will start ...

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