.023 -.024 end gap on the top ring on a turbo motor seems a little tight to me... i would want less on a normally asperated motor but i would be afraid of the butting the ends on a turbo motor... we ran that much ring end gap on a small 930cc 4 cyl kawasaki motor.. we burned up more than a couple pistons trying to run less... never had any trouble with the larger gap..the static leak test was a li