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Whiplash Performance · 07-02-2010, 11:48 PM

If you want I could get you prices on the Manley valve springs, retainers, keepers and valves.
I have seen a few problems with PAC springs breaking. I have 921s in the GTO and in the trailblazer with a high 23x duration cam with 600 lift on them for a 2 years on the goat and 6 months on the trailblazer with no issues.

07-02-2010, 11:48 PM	#7
Whiplash Performance Join Date: Apr 2009 Location: Hillsborough, NJ Posts: 1,099 iTrader: (1)	If you want I could get you prices on the Manley valve springs, retainers, keepers and valves. I have seen a few problems with PAC springs breaking. I have 921s in the GTO and in the trailblazer with a high 23x duration cam with 600 lift on them for a 2 years on the goat and 6 months on the trailblazer with no issues. __________________ -Devin Whiplash Intense Performance Intensify your ride with over 500 name brand Performance parts and accessories! www.intensewhiplash.com