Hold your horses bud, let’s do some checking before you spend any more money. Compare the Speedmaster spring specs to whatever Lunati recommends for that cam. I have a feeling you’ll be able to use the ones you have.
HA. I will for sure! Ill try and find the ones I ordered and see if the specs are anywhere to be found on their site. Don't suppose they would be in the box that the heads came in. Doubt it.