Chevy 350 new top end for a 1965 Nova Wagon with ProMaxx heads

We pull the GOAT 350 out of retirement for our 65 Nova Wagon aka The Blue Wagon. The 406 that was in The Blue Wagon had some oil pressure issues (shown in our last video), so we decided to freshen up the old 350 and put in back in the wagon. We decided to give the ProMaxx heads a shot and made a surprising discovery.