Since my old roller rockers are cheap and one failed , I'm replacing them with 1.6 harland 3/8 stud roller rockers. This will take my cam from 546 to 505 roughly. How much will this affect my tune and hp?
Since my old roller rockers are cheap and one failed , I'm replacing them with 1.6 harland 3/8 stud roller rockers. This will take my cam from 546 to 505 roughly. How much will this affect my tune and hp?