copo,
the number on the pad by the dist is stamped in it (kinda like the way con rods are numbered) so it is shallow and paint could be covering it.
See if it is there, but can you read the other numbers?
One of them is CON 2 (Conveyor 2) but the other is the block casting number and date, we could tell a lot from those.
Problem is the 230 and 250 shared the same block, so the only sure way is the distributor pad stamp.
Of course, the only real sure way is pull the head and measure the stroke!
