Its a 1970 250 six in a 1975 chevy
truck.It started out with no oil
geting up to 3 rockers,I put some
mystery oil in it and it cleared up
some so I ran some engine flush
threw it and now I've got 4 cloged.
other than that it runs great.
When I found the rockers dry the first
time I checked the oil it was plenty
but really dirty.
