Carburetor upgrade and intake manifold

So I figured all that, and I'm now working on te electric choke the wire isn't long enough to reach the fuse box under the dash. Is there a way to splice it to any of the other hot wires?
Or should I just go buy a longer wire?

I am a maintenance /industrial electrician, not an automotive one, but my advice is to replace the wire, a wire with a splice is just one added place something can go wrong.