Sound like bad news. The turbo does not beat up the pistons/ rings. Lean, hot mixtures with too much timing cause detonation. You may have cracked a piston ring land or broke a ring. Maybe more than 1 piston is affected. Does it miss?
Do you have any video of it running/ driving? Show us what it did with boost.
Last edited by tlowe #1716; 02/28/1211:03 PM.
Inliner Member 1716 65 Chevelle Wagon and 41 Hudson Pickup Information and parts www.12bolt.com
