What intake to look for??? Stock 360 crate motor

The 273-4 intake would be all bottom end! I bet its not sealing and you have a massive intake leak if they used 360 gaskets. It would seal with 273/318 gaskets if they were not metal shims. Sell the 273-4 for $150 and buy yourself a crosswind or a Performer 318/360 and gasket match the ports. Even the iron 360 intakes were not bad.