I always bend my own lines. No problems yet.
I am looking into upgrading to stainless steel lines... Mine rust out every three or four years here in MI.
Yeah, all engines have fixed compression ratios. At least so far... Nobody that I know of has figured out how to make it variable. When that happens it will be a scary day... But I expect to see camless engines much sooner, and those will be strange things.
Shutting off cylinders in my...