Re: MFG Westfield YEAR???
Just looked on fiberglassics mfg info in there library,1964 shows a Westfield I/O under the spec sheets. I will let you search the literature and see when they stopped with the I/O on the Westfield.Now this boat may have sat on a dealers floor for a few years before being sold and when it was they may have registered it as a 1968. Or someone along the line may have misread the year and it is now a 1968.My Power Cat is registered as a 1967 but the hull ID plate shows it was made in 1966.It was easier back then to get things mixed up with no big repercussions.
As far as your carb questions and parts I would post in the misc motor/outdrive section if there is not a specific Renault listing.Someone made the carbs for Renault,maybe check a NAPA type store,,good luck!!