Comp 921's or Crane or Patriot duals with machined 1.46 spring seats?
05-03-2004, 09:57 PM
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Comp 921's or Crane or Patriot duals with machined 1.46 spring seats? If my heads have been machined to run the larger Comp 987's(1.43-1.46) can I still go ahead and upgrade to the comp 921's or the Crane duals or Patriot duals that are for the stock size spring seats? Thanks.
