comp 921 valve springs
03-13-2011, 05:18 PM
#1
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comp 921 valve springs are they pretty much the best? 600 is A lot of cheese for a set of springs but if they don't break like others then it's worth it. they better then prc 675s or patriot xtremes? sry guys just want to drop in a spring and a big cam and roll for awhile with no worries
03-13-2011, 05:29 PM
#2
IMO, PAC 1521's are better, and cost a little less.
http://www.speedinc.com/catagory.cfm...in%20/%20Heads
http://www.speedinc.com/catagory.cfm...in%20/%20Heads
Last edited by 99Bluz28; 03-13-2011 at 05:35 PM.
