Originally Posted by Mr C
So it is a myth that Cyl 4 is the one to run lean if any, it would be Cyl number1 then. Thanks for clearing that up for me

if any cylinder does run lean, it will not be due to supply issues from the rail.
no. 3 traditionally tends to be the one to melt on a yb as that cylinder gets marginally more airflow than the others due to the plenum, elbow design.
on some engines no. 4 fails, as it's furthest from the water pump so can get hotter than others.