Description

The plan shows pieces of lite ply of various sizes to be inserted in front of the main lite ply fuselage side doubler depending on which engine will be used,  but in my kit the fuselage side doubler extends all the way to the back of the firewall as shown in the fuselage side view.  There are no extra pieces to go in front of it.  If you are using a long 4 stroke engine, trim the lite ply side doubler and the fuselage side as necessary, and move the firewall back.