I've a cam swap to do on a mates 231 evenfire V6 .Reading through Chilterns it mentions the chance of 0.10" over followers , anyone come across this in real life ? Plus what about lifter preload? No mention in the Edelbrock cam info about it ?

The leaflet also mentions using an Edelbrock timing set. Is it neccesary of sales hype ,mentions OEM gear sets being set retarded.