They call it a stage 1 kit, but the only real limitation is the mains supplied with the kit. By supplementing it with some richer mains, you can have a great setup running pods and free flowing pipes.Well, the dynojet kit is really a stage 1 kit. With the set up the OP has he should be able to get it running really nicely with the stock springs and needle.
Will likely need a shim under the needle, and 42 pilots would be better. I'm surprised they sent 45s to be honest.