08-21-2013, 06:35 PM
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CC Member
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Join Date: Apr 1999
Location: Waco, TX,
TX
Cobra Make, Engine: ERA #766, FE V8, Toploader
Posts: 257
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Not Ranked
750 may be a bit large for a 390. I run a 660 on mine with excellent results and no problems out of the box.
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