408 ford stroker drag car getting very hot fast

have tried everything but no solution--have even inline 2 heater cores straight from the pump to them before the engine.
was told maybe have a vapor lock in engine that maybe stopping water flow thru engine.
this is a show / drag race car and everything on this car is new and very customized.
I am wondering if maybe there is some water ports blocked some where.
I am afraid I might have damaged the engine as it has gotten to 240 degrees 2 times already. i am going to ck compression again tomorrow.
I need everyones input if you have any as I have abt given up
thanks jerry

 

could the lower radiator hose be collapsing?

 

both hoses have the wire in them so they will not collapse but I was told that the wire holds heat but I do not think that much
thanks for the info