Dwayne Porter told me the biggest enemy to rollers is valve float as you dont want the roller lifters slapping the cam in valve float which can damage a roller so you want to run enough spring pressure so that if you race your car you wont go into valve float which can damage a roller needle bearing. Ron
You can buy bushed roller lifters now (Lunati).
When it takes more than a sweet mullet to prove you rule at the trailer park..
