What are symptoms of #9 or #10 camshaft lobe wear?

[TGP Nick]

Yeah you will need to modify the guideplates.  Another option is grabbing a set from a 94-95 3100 at the JY.  Just bolts right in, no grinding required. ;)

[mfewtrail]

If you do not grind out the stock guideplates for clearance, the pushrods will rub against the sides and bottoms of them. I'm not stating an opinion. ;)

[RICHTGP]

ANYBODY HAVE ANY OF THE 82 MODEL 2.8 LITER STUDS AND NUTS? tHE GM DEALER IS RIDICULOUS!! :icon_evil:

[TGP Nick]

You may want to try a JY for them ;)