Nitrous Oxide - NX Max 2/Solenoid Driver wiring question

I need some clarification on how to wire the solenoid driver to the solenoids. The manual shows...
The blue wire goes to stage 1
The wire goes gets 2 outputs to one side of each of the solenoids
The 2nd wire on the solenoids goes to the relay that connects to the battery once the coil kicks over.

Where can you get 40 amp relays locally?
Phil

Radio Shak's are all 30 arent they....hmmm.

did you try local auto parts stores? Or a local speed shop tht carries NOS parts....I think all thiers are 40 amp.

I had an old 40 amp laying a round when I hooked mine up.