Originally posted by techinspector1
Here's Crane's description of a 230 degree cam in a small block. If this describes your motor and your intentions, go for it, otherwise follow Chevy 37's advice. He has "been there, done that".

PERFORMANCE USAGE, GOOD MID AND UPPER RPM HP, BRACKET RACING; STREET, HEAVY, ETC., AUTO TRANS W/3000+ CONVERTER, 10.0 TO 11.5 COMPRESSION RATIO ADVISED. BASIC RPM 3200-6200

Take note that you'll need at least 10.0:1 static compression ratio to make the 230 cam work due to the delayed intake closing point.
Cranes description of that cam would most likely be in a 350...in a 305 it would be more radical.
With a 305...or any small bore engine, always error to the small size. a 305 is very easy to over cam, & over carb. They arent as forgiving as larger bore engine....like a 302 for example.