G`morning guys
I have routed the "overflow tubes" into the K&N filters for the 3 years. Seems to work fine and does prevent fuel spilling.
I also made up "heat deflectors" that simply snap tie beneath the carbs. This seems to keep the carb bowls cooler after shut down on hot days. (first pic in my album under brush brackets)
The shields are made up from race car starter protector kits.
This system may not look very professional but is very easy to remove for maintenance.
Cheers
Don