Here are some pictures from my camshaft swap (currently in progress). The initial reason I started this was because I suspected cam endplay (I heard it knocking!). Turns out two bolt holes on the thrust plate had broken off, one bolt was missing, and the only bolt left (the oil slinger bolt) was hanging on by a few threads and was badly bent. I found metal shavings on the inside of the fuel pump eccentric! Thats bad. The new cam will be milder to match my driving and drivetrain better. Here is a comparison of the new parts to the old:

New: Edelbrock Performer RPM Air-Gap (dual plane) CompCams Xtreme Energy hydraulic cam & lifters    268/280 Adv. Duration; .477/.480 Valve Lift    Expected Power RPM range: 1600-5800 Mopar Performance Lightweight Starter Polyurethane Motor Mounts (original-style spool type) Tru-Roller 3-keyway timing chain Ribbed stainless steel radiator/heater hoses

Old: Edelbrock Torker 340 (single plane) Crane Fireball hydraulic cam, date stamped '84    300/300 Adv. Duration; .480/.480 Valve Lift    Power RPM range: 2800-6000 Stock Starter Stock Rubber Motor Mounts (damaged) Roller 1-keyway timing chain (damaged by excessive endplay) Rubber radiator/heater hoses w/ stainless sleeves