my first engine rebuild (318) advises
I cheked couple of valve guides for clearance and they are too sloppy. i can move valves side to side when they are in guides, so looks like they needed change anyway.
I have been porting my heads, nothing big, removed hump from exhaust roof, and opening intake side little bit from short turn side.
Now parts are clean for machine shop.
will take parts to the shop soon as i have time to took 80mile trip.