Be sure to get the right shop manual.
If it is indeed a Truck engine, you will need the '58 Truck manual. The '59 Truck manual is a suppliment, and only covers the changes from from '58 to '59, very little involving the engine itself. The only real benificial information on the 235 in the '59 suppliment is the sequence and ft/lbs spec for torquing the intake/exhaust manifolds.
