I apologize if there is already a post for this. I bought the truck from a friend and have rebuilt the stock carb replaced plug wires, plugs, fuel filter and pump. I have looked all over and i am getting a couple different answers. ive read 15 degree btdc and 5 +- 2. im looking for best mpg. its the 2.4 with 8 plugs. also is btdc to the right or left of tdc if facing the front of the truck? I dont want to go to far advanced because I not real familiar with motors and I know some are interference. Im used to working on sbc.