I dont think the F-cam will break the springs but you may have trouble in the upper rpms floating the valves.
If you plan on doing a head swap in the near future I would go ahead and drop in the cam. Cause it is alot easier to install a cam with the motor on a stand like you said.
Good luck,
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim.
00' Lightning-Stock
88'CRX-13 second ego killer
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