Hi MM
Yes, we are allowed to open up the venturi's for the SSR event. All other aspects of the engine have to remain stock.
As they come from the factory, the LA does have an advantage over the Brodak in power, however, when you start opening up the venturi's, that Brodak has a decided advantage over the LA and about equal to a really good FP. However, the Brodak hot restarts much easier than my FP ever did.
The biggest complaint I've heard about the Brodak, has been the lack of availability. Apparently they are manufactured in small runs, with much time in between the runs!
I use an 8x5 APC sport prop on mine, and my flying partner uses a 7x6 Taipan on his to very good effect.
I have a spare LA P/L in my stuff somewhere. It is used, but in great shape. I have no need for it, so if you can use it let me know and I'll send it to you no charge.
Les