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Old 02-16-2006, 11:25 AM
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Originally Posted by camaroman7d
9:1 with iron heads should not be a problem. 10:1 is the "rule of thumb limit" for iron heads and pump gas. If your quench is tight you should have no problems with 9:1 on pump gas w/iron heads.

I would agree with this.......and quench is a very important factor.
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