To everyone....Guess who makes the majority of the springs mentioned in this thread, including Espo ?
John R Spring
To the OP: Be careful with +1" and +2" springs. You will probably not be happy with how high it sits. Your original 40 year old springs are taxed, and sit way below stock. Just get yourself a nice set of factory replacement springs. You will be happy. That is unless you are looking for the jacked up in the air look.