Car is a 64 Dart 270 sedan, it is in pretty sweet condition so I am keeping it in at least close to stock (looking) condition. Engine won't be rebuilt for a year or two but I am planning ahead and have the engine book on hand for later.

Will have a Pertronix Ignitor 2 with a recurved distributor (so I can at least look close to original), and a new free flowing exhaust before the engine rebuild. Has a 904 which will retain the stock stall and 2.9 rear with 185 80r13 tires.

Car is a cruiser and drives an even mix of small highway (no more than 65mph, usually 55-60) and city streets. Doubtful that I drive it on the 80mph interstate ever. Looking for good torque and mileage (I get 20mpg bone stock with a light right foot).

Just curious as to what point the cam will outsize the little BBS. I am leaning towards 818 or 2016r, still want to keep the torque nice for passing but don't mind smaller if 2016r will be too much for the BBS. Also does anyone with a good comp calc know the recommended static compression for both choices? I get different results with different calculators and not everyone puts openning events at lash and some of the calcs use different events to use. I am at 5k feet but never plan on the car going below 2k and I use 89 octane gas (which can be premium depending on the station here, 85 is regular).

Thanks
B

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I'm using the 818 and think it would be good for your car too.

FWIW, 20MPG is not that good with a light foot. It's not miserable but not great either.

Using a 1bbl (appx 185 cfm) limits higher RPM use so a "torque" cam grind should be the focus.

The main concern for a torque grind is to keep intake track velocity as high as possible in the lower RPM range.
Early intake closing, late exhaust opening and a short over lap event all help torque so select lob design(s) that help you achieve those goals.
DD