I'd go the 360, as the 355
I'd go the 360, as the 355 has developed some familiar fialure patterns in the engine, if it were me....
To the untrained eye the 360 and 430 are pretty similar! I call this the 'girl on the curb factor'....;)
The 430 motor IS better as you know, but the market is glutted with 360s right now in the Buyer's favor...check out the Ferrari Market Letter...Ipicked up a recent issue if you want me to mail it....
Having 3 308GTBs I think I'm not shopping, this month anyway!