I am thinking about running a gm847 in my car and wondered what the best springs are for it, i also have 1.6 RRs.

Thanks Scott

 

You are gonna need some comp 918's with that much lift.

 

how do i know what i have to do about my install height, the car already has a cam in it but when i went to order new springs from a performance shopp he said that i had to know my install height. Do you know the actual part number for them on the LT1s ? Thanks for the info

Scott

 

I'd talk to SStrokerace. He might be able to help you.

 

You should use a valve spring mic like this:
http://www.jegs.com/cgi-bin/ncommerc...09&prmenbr=361
I also agree with z95m6, sstrokerace (Bret) is very knowlagable.