If you have dual springs, there is an aftermarket (or a huge stock) cam in it. Not typical stationwagon/truck motor. The pully is probably G.M.'s way of cutting costs and using a 'universal" pully that fits 5 models instead of one part number per model.
Just a guess on the pully, but it makes sence.
------------------
'69 G.M.C. 350/350. Trying to clean up the left over damage from the
Dope-Smokin-Old-Man
I've been dubbed the Longhorn
Freak/Fanatic/Expert, I just hope I can live up to it.
FINALLY got the
HORNIAC...a '70
one ton Longhorn with a
Pontiac 350/350 and lots of
'personality'. Check out
The Longhorn Webite.
E-mail
longhornmail@yahoo.com
My name is Andy...not Randy...I'm in Ohio...Not Illinois...close enough?
Columbus Ohio