which should I go with? Cant seem to find anything on the internets about preference except for some people back in the day installed them wrong and thought they were a **** part. should I go with the comp cam lifters if price is not the deciding factor?

 

Stick with the LS7. Neither are a tru hi performance lifter, might as well stick with the GM lifter. No need to worry about any install differences. ( I say that because most likely your in the same price range)

 

comp 850s is fine.