Adding a venturi to my factory race fairing. Fountain sends them out without holes, so I need some pics of fairing from the front showing the number and location of the holes. Also, has anyone had experience drilling lexan / plexi (the difference is ...???) of this thickness? This stuff is thick and I was wondering if I should just have a plastic shop do it for me. Any pics, dimensions, positive thoughts appreciated ......

Its not aluminum?

The fairing is aluminum- it is a factory race fairing. I am adding the clear "plastic" venturi to the top of it. I need to get the spacing on the holes so I can have them drilled. I need to know the distances from the outside edge and bottom of the venturi and the spacing and number of holes. Also, the dimension of the holes would help.

As for drilling if the holes are smaller then use a plastic drill bit and drill slow. For bigger holes use a template and a router with a plastic bit...or if just don’t feel good about it have a shop do the bigger ones off of your template.
If you can make a full size template out of cheap plastic sheeting from the info you get from here then you can do a moc up fit before you touch the real one.
Also never use alcohol to clean plastic!

ttt