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daninline · 09-11-2011, 06:02 PM

Bob it looks like the factory springs are around 130 to 140, 200 to 240 seems way to much for a hyd lifter. the big question is will it cause a intake pop on the upper RPM range like you have seen....

09-11-2011, 06:02 PM	#2
daninline Junior Member Join Date: Jul 2010 Posts: 8 Likes: 0 Liked 0 Times in 0 Posts	Re: valve sprig life Bob it looks like the factory springs are around 130 to 140, 200 to 240 seems way to much for a hyd lifter. the big question is will it cause a intake pop on the upper RPM range like you have seen....