The 60-1 turbonetics turbo we installed on my buddies miata ran in parallel fine. Its been doing good so far. He's running a koyo radiator, but no other cooling modifications really and the temps are steady. He did build a duct to direct air under the FMIC to the rad though, but other than that, no issues.
You should be fine.
BTW - I'm doing similar wire tucks on my FC for the same reasons. I'm starting with a clean slate though, no wires right now at all
