oil leak
thanks to all
its a 565 bbc block is o ringed NOS 2 systems
it is somewhere in the back lower drivers side
have checked all the way down from valve cover [no leak]intake down[no leak]
tracked it down to an area mid to bottom of head[rear of engine] to the area where the block is exposed
wasnt thinking earlier propably should run it without vacuam pump to attempt to locate leak going out there now
anyone know any pros & cons of Bars Leak oil sealer