Rep Power: 223

I officially blew my head gasket and planning to swap my head to ex.. but my funds are running low and i need my car to get to the street ... im running tsi kit @ 6 psi currently running tsi f/c . Can i swap the head to an ex and buy an emanage later on to activate the vtec? or i can use the car even without activating the vtec. will i end up detonating? need some advice here...