Excellent info. At least with the Franklin's six cylinders, this isn't as much of a problem. I think this is why IVO/Franklin combinations seem to work. -- Brian Michalk <http://www.awpi.com/michalk> Life is what you make of it ... never wish you had done something. Aviator, experimental aircraft builder, motorcyclist, SCUBA diver musician, home-brewer, entrepenuer and SINGLE!