Who sells the secondary diapharm springs and are there kit avalable this is for a 440-6 thanks for and help Matt.

There is only one kit and it fits both the 4 bbls and the 6 bbls. But you will need 2 kits since you have 2 pods.

Many of the auto parts supplies like O'Reilly's can order Holley stuff and can have them the next day with no shipping and no minimum order. If you have enough other items to meet their minimums, then Jeg's, Summit, Amazon, Ebag, etc also have them.