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The difference will be 6.25% more lift with the 1.7's. Make sure the valves won't be touching your pistons before increasing lift. Use the steerr roller rockers, the aluminum ones are a throw away item after a certain amount of use. the steel ones are just as "light at the valve"
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In a fit of 16 year old genius, I looked down through the carb while cranking it to see if fuel was flowing, and it was. Flowing straight up in a vapor cloud, around my head, on fire.
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