yes im glad i did by the ray barton stuff in 2003, almost 20 yrs of beating the crap out of them on the street and track no wear at all, and the valve springs last because of all the oil being sprayed in the valve cover ,730 lift roller, cam and at least 12000 miles on the rockers and pushrods best investment for my hemi and they never come out of adjustment set um and forget um lol

606 hemi pump gas best 9.60 at 142mph on motor
05 hemi daytona 1500 go-mango 4wd quadcab
2007 hotrod mag pump gas drags runner up, roadkill nights dodge big tire winner 2018 2019 back to back