New LS1 Owners - Newbie Tech - someone tell me why i have so much oil blow by

97 vette,6spd,38k,upgrades com,heads,b&b full ext. just had car on dyno last thur. did 405.12hp at wheels,385.79of max torque.top end torque falls off. little smoke at top end. beford dyno car was 50% lean,not good I just got this car at the end of may. did not drive it hard. Knew something was not right. was told drive tran is loose. please help!

do a compression test when the motor is warm on all 8 cylinders! the smoke can be from so much fuel at top rpms. post back again with the results it should not take too much time.

do exactly what he said. also low mileage car like that maybe the valve seals are getting old. just a thought.