I have a 383 stroker motor and its old school without a computer and the car is not running right now but I just removed the heater and the air conditioner from the firewall. will these wires that were hooked up to the ac and the heater affect the car from starting if I would remove the wires completely?

 

It won't effect how it runs if you remove them. But its best to remove wires AFTER you have everything running and working correctly.