It is critical to use High ZDDP/Zinc oil in every oil change on flat tappet engines. Duration @. 050": Intake: 204° Exhaust: 214°. Idle: SMOOTH. Power Range: 1500-4500. Lobe Separation: Intake: 112°.
The product was as described not used not damaged or defective The product fit the vehicle with no issues did not have any flaws or imperfections as far as the material and quality they seem to be on par with the manufacturer style I do not know where they were sourced or anything to that degree but I have faith that it'll do cam thing would buy again if I needed one