Thank you all for the great suggestions! I'm planning on pulling the rocker covers and replacing the gasket/o-rings anyway as well as verify if this engine has the updated head bolts.

The engine runs well and pulls hard but I'm not exactly used to 514 HP so even if it pulled with 450 HP it would still feel crazy.

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-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250