Cut a slot centered on the scoop of the bottom cowl per the dimensions given.
Fit the COWL, 10 INLET LEFT and RIGHT (called inlet ramps throughout the remainder of this section) to the top cowl, trimming and sanding as necessary for a good fit.
Drill #40 and cleco the inlet ramps in place. (The holes can be easily filled when fin ishing the outside surface of the cowl). Remove the inlet ramps.