77lindy; My impression is that headers wont help miles per gallon or power, unless you are running the engine above 4000 rpm. And of course you would need to have the rest of the exhaust system match the flow rate of the headers. But since the engine in my m400 chassis is only turning about 3000 rpm at 60 mph, (and the driveshaft speed is only about 2780 with the 4.55 rear axle ration), I dont need headers.
There is an MSN group for fix-up old RVs of whatever make. It is still small: http://groups.msn.com/MotorHomeRefurbishorRestoration.
For the vintage dodge based motorhomes, the url www.classicwinnebago.com leads you to the classic winnebago motorhome crowd - which includes other makes, even includes the occasional chevy P30 chassis under a winnebago.
There dont seem to be any Bad vintage RV groups, its all in what the reader likes. I like them all.
