Quick question
What is base cirlcle of stock
I have the ls7 lifter and keep reading the cup height is higher on them compared to stock!
I was wondering if i should swap out the 7.425 for a set of 7.350 !
I know I should measure , but just wanted your opinion on this !
Also need to order valve guide seals for a ls6 stg 2.5 head from tsp what is the size and best on to go with!

