I have an 08 gt500 with a 2.8lc kb kooks long tubes, kooks x pipe, magnaflow mufflers, Shelby dual fan heat ex, 10% iw lower, kb bap. it dyno 737 wrhp on 17psi on 93 gas. Well this pass weekend it blow up I pulled all the plugs all look good, looked in with a bore scope found some side wall damage to cyl 8, performed compression test which the results was 0 psi, looked on top with bore scope looks good thinking part of piston came apart between the rings, running tr7s and a lund tune, not sure what caused that if a bad tune or fuel or if over boosted, but now its time to rebuild, not sure what route to take build what I have or go with a short block