In a message dated 10/4/2001 2:14:52 AM Pacific Daylight Time, Chrysler300@xxxxxxxxxxxxxxx writes: << A b/map sensor will solve the main problem.But that means F/I .The throttle body F/I would be a way to go but balance with two on long rams is something I don't want to even think about.I suppose one could split the system and run it as two 4 cyl.engines with 2 of everything (oxy.-maps-temp-knock-sensors ect.) But E.F.I sounds like a better way to go.Sort of hate to drill the long rams for the injectors but I have a spare set and the holes can always be plugged and tigg weleded.I prickled the engine when I put it away so when I tear it down will go with the hard seats. >> To Jim McMullan: I apologize in advance if I am somewhat confused, but I seem to have joined this conversation in mid-stream. Having said that, let me next ask (with all due respect), what the HECK do you think you are doing??? Why would you want to mess us a perfectly nice 300F long ram car with some kind of kluged-up, cockamamie fuel injection system that probably won't work right, and shouldn't be necessary anyway? I own a 300F myself with original long ram and Carter AFB's, and it runs like a freight train on 92 octane pump gas without modifications or additives of any kind. Starts, idles, and pulls strong to max revs without any problem whatsoever. The secret? When the engine was overhauled a few years back, we dropped the compression ratio to 9.2 to 1 (from the stock 10.2 to 1). Computer simulations indicate that change cost me about 10-12 horsepower, no more. If you absolutely don't want to run your original dual Carter AFB's (some people can't seem to get them tuned; I don't know why), then put them aside and get yourself a pair of new Edelbrock AFB clones. I know a Hemi restorer who swears by them for Hemis, and will use nothing else. If you can't bear lowering your compression to 9.2 (and the loss of 12 horsepower, which you can make up in a variety of ways, like mild porting), and you absolutely insist on having high (10:1 or more) compression, then get yourself a simple water injection unit and tap it into your manifold in some hidden place where it will feed both banks equally (heck, you could probably feed it into a crossover tube from underneath and nobody would be the wiser). With a simple, properly set-up water injection unit, you could probably go as high as 13 to 1 on pump gas, if you wanted. But for heaven's sake, don't butcher your crossram. You'll probably live to regret it, and if you don't, the next dozen owners after you WILL. I guarantee it. 300F'ly, Roger Karlson