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454 rough running

1K views 1 reply 2 participants last post by  airboat 
#1 ·
I have a 454 .030 rebuilt and reworked 206 closed chmber heads on it that has less then 40 miles total on it . I take it around the block once a week if that and for some reason if I "get on it" thenslow down it will start to shake once I start to excelerate again ? is this a fuel issue I have a mechanical fuel pump and regulator set at 5psi or is it a vacuum issue ?
 
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