Actually the PRV runs quite well with absolutely no fuel enrichment whatsoever. I know because that's how I took possession of my own copy. Had fuel metering of course, but no enrichment beyond that. I am now running one enrichment mechanism only -- through the CPR (038 series, much simpler than 066). Martin Gutkowski has also jetisoned most of his Lambda based enrichment mechanisms with good results. Do not confuse the core engine with later bolt on systems. Earliest PRV's were carbureted -- the epitome of simple. Didn't receive fuel injection until 1975. Didn't receive our K Jetronic system until 1978 or 1979. All this happened north of the heads -- engine itself remained unchanged until 1987 (albeit with varying pistons and connecting rods, and of course the increase in cylinder size). Remember: anything added to an engine can be removed later, returning it "to basics". List member in California plans to do a carburetor conversion (A series manifold) on his stock DeLo PRV this summer. Factory ignition will remain intact. I can't wait for the results to be posted... Bill Robertson #5939 >--- In dmcnews@xxxxxxxxxxxxxxx, Jim Strickland <ihaveanaccount@xxxx> wrote: > > I counted SIX different methods of fuel enrichment that the engine > employs. When more than one of these systems are failing, bypassed, or > 10 other things that a backyard mechanic might decide to do, tracking > down the problems gets time consuming and expensive in parts. > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/