Hi guys, I've been keeping up on the thread as much as posssible, I have the cap as well with an os 1.60.
Perhaps you remember Bubba, I had the issue with the fire wall not being glued in from factory, and I never double checked.
You had mentioned Bubba that you pin your firewalls, Could you explane to me how to do this?
I have rebuilt the entire fiewall and engine mount(this took a while, as I have been flyuing for about 3.5 yrs now but there are no clubs around here so I have had to learn everything the hard way)
Any how I have it built and ready to fly but I would like to have a litle more security on landing that it doesn't pull out again and poke holes in my wings with the wheel pants[:@]
Any help would be greatly appreciated.

I'm pretty sure it won't happen know again as in the fuse above and below the fuel tank I molded blue styrafoam to fit and glued it in with Gorilla glue and than put two wooden dowels above the tank as well as below, glued them in to the styrafoam and then threaded the ends and bolted the firewall to that
I know how much weight was added, about 2oz, but I had 2!/4oz on the tail befoe anyhow, so worked out good.

Sorry for the long thread, but thought I should explane what I did.