Hey Everyone,

I picked up a mint set of 243's for a turbo 5.3L build. I'm running E85, so I'd like to put the compression ratio to be at or around 11:1. Can someone give me an idea as far as how much I need to have the heads decked to achieve that C/R ratio on the 5.3L motor.

The motor also has a 02+ Z06 cam in it.


Thanks,

Chris