Anyone know specs on Mopar Performance valve springs?

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Anyone know specs on Mopar Performance valve springs? #578132 01/10/10 12:27 AM 01/10/10 12:27 AM
Joined: Jan 2003 Posts: 1,620 MA R ragtop OP top fuel
ragtop OP top fuel R Joined: Jan 2003 Posts: 1,620 MA	Looking for seat pressure and eather spring rate or open pressure of MP #4120249 & 5249847. Thanks.

Re: Anyone know specs on Mopar Performance valve springs? [Re: ragtop] #578133 01/10/10 01:11 PM 01/10/10 01:11 PM
Joined: Jan 2003 Posts: 6,392 nielsville, minn. Q quickd100 master
quickd100 master Q Joined: Jan 2003 Posts: 6,392 nielsville, minn.	#P4120249-installed @1.700,69lbs., @1.200,260lbs.

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