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489" chevelle Gotta love a tunnel-ram BBC
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<blockquote data-quote="swampratt" data-source="post: 3076687" data-attributes="member: 15054"><p>The bad with Holley was picking and scrapping all the gasket materials off.</p><p>The non stick blue gaskets work very well.</p><p>BUT know this the Holley originally had cork or paper type and it would shrink and so there was a thin raised bead added to grip the</p><p>gasket to keep it from shrinking and pulling out of position and creating a fuel leak or other issues.</p><p></p><p>You can remove that bead with the NO stick blue gaskets as they do not shrink.</p><p>If you leave the raised bead it will cut through the non stick and you will get some sticking of that no stick gasket.</p><p></p><p>Removing the bead makes metering block and jet changes much easier and quicker and you get to reuse the gasket many times.</p><p></p><p>Boosters are not always centered in those Holley carbs.. something a little tweaking can do.</p><p>Thick throttle shafts and fat protruding screws in those shafts really hurt those carbs.</p></blockquote><p></p>
[QUOTE="swampratt, post: 3076687, member: 15054"] The bad with Holley was picking and scrapping all the gasket materials off. The non stick blue gaskets work very well. BUT know this the Holley originally had cork or paper type and it would shrink and so there was a thin raised bead added to grip the gasket to keep it from shrinking and pulling out of position and creating a fuel leak or other issues. You can remove that bead with the NO stick blue gaskets as they do not shrink. If you leave the raised bead it will cut through the non stick and you will get some sticking of that no stick gasket. Removing the bead makes metering block and jet changes much easier and quicker and you get to reuse the gasket many times. Boosters are not always centered in those Holley carbs.. something a little tweaking can do. Thick throttle shafts and fat protruding screws in those shafts really hurt those carbs. [/QUOTE]
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