Guy's interesting reading all of the above, I am/was planing to put 2 rvc's into Vance's Whirlwind, but the vibration you guy's are discussing is a bit of a worry, why do they vibrate so much?????, I would have thought the inline arrangement would have reduced that level.
I have been running OS 4 st for a number of years, and yes one has to strengthen the firewall, but the way you guy's are talking,looks like one has to mount them onto a brick..............not so sure now that the rcv's are the way to go.[sm=50_50.gif]
I am disapointed, but maybe it's not all that bad????????
A.A Barry