timing belt change - advance/or not

[GMBCHEF at aol.com]

Try 6-9 degrees first, then go down to 3 and try to find something in between 
that works good for you. Remember your engine is an interference engine, so 
you have to be careful of that. I have mine set at 3-1/2 degrees retarded on 
my 4kq cause the head is shaved so much. Also, when you move cam timing, your 
only moving the powerband, not increasing it. 
HTH
Gary