If it's not to late find and purchase the Taylor plug wire puller. You don't want to be pulling on the wires. But you bought new ones so I guess it doesn't matter. Also put a little never-seize on the threads and a little dielectric grease on the tip. Makes things much easier nest time.
From Wikipedia:
Dielectric grease is a nonconductive grease. As such, it does not enhance the flow of electrical current. Thus
electrical conductors should not be coated with dielectric grease prior to being mated. Dielectric grease is, however, often applied to
electrical connectors, particularly those containing rubber gaskets, as a means of lubricating and sealing rubber portions of the connector. The widest use of dielectric grease is in high-voltage connections associated with spark plugs. The grease is applied to the rubber boot of the plug wire. This helps the rubber boot slide onto the ceramic insulator of the plug. The grease also acts to seal the rubber boot, while at the same time preventing the rubber from becoming stuck to the ceramic. Generally spark plugs are located in areas of high temperature, and the grease is formulated to withstand the temperature range expected.
Another common use of dielectric grease is on the rubber mating surfaces or gaskets of multi-pin electrical connectors used in automotive and marine engines. The grease again acts as a lubricant and a sealant on the non-conductive mating surfaces of the connector. It is not recommended to be applied to the actual electrical conductive contacts of the connector because it could interfere with the electrical signals passing through the connector.