The 91 had a good cam in it from the factory compared to the 93 I have. Mine had '0' valve overlap. The 91 is comparable to the EV23 cam. The EV46 is really for the mid weight bikes: Heritage, etc. If you strip down the 'Glide and you + passenger don't add up to much weight, it may work fine.

I run the EV27, Screaming Eagle air cleaner, Dyna 2000 ignition, 'street ported' heads, and the SuperTrapps. Stock CV carb has been dyno tuned. I'm right around 80/80 hp/tq. Pretty much the stock compression ~9:1, but I usually run 93 octane. Bike will hang in there uphill, two-up, with baggage. And still have power to pass. The ignition cut-off is ~6000 rpm. I normally run on the interstates at 65-75 mph, and get in the low 40's for mpg.

 

Here's a good PDF from Andrews: http://www.andrewsproducts.com/sites...014-page13.pdf

 

Thanks Hackd, That is handy.
I've got a DM500 in it right now. I play with it a lot.
I worked all day getting my pals race bike ready today, it's been a long day.. it ran great on a test hop its a highly modified 86 FXR .. fun little hot rod. Time for a cold beer.