Thanks for any advice you can give! I appreciate you sharing any experience you have. I'll try it!
1. I haven't had a prescribed plan for pre-ride eating (I know.not great)...so it varies depending on what day it is (after work?, weekend ride?). If I'm riding after work, then I dont have much other than my lunch still in me when I start and I don't generally eat heavy lunches (usually under 400cal). Weekend rides give me a little more latitude... can eat a bigger breakfast (more carbs - maybe 500-700cal), or a 'heavier' lunch (about same cals). But.. I really haven't tried for a certain amount..just basically ate more (blindly) thinking it'd be better for energy to eat more than just my Frosted Mini Wheats. 
2. I'm probably not taking in enough during my usual rides. Perpeteum is 166cal per serving and Heet is only 100. Accel Gel or Sport Beans is 100. I usually only take in one of each during a longer training ride (50)
3. Right now, I weigh 152 (5'7")..but I'm still trying to lose. I want to get increase my power-to-weight ratio...
Makes climbing easier.. My "Lose It!" iPhone app gives me a calorie target w/o exercise.. but when I add exercise, it gives me an estimated increase in the amount of calories to keep my weight loss goal in sight. Example..without exercise, my daily target is just under 1300.. but if I add a 2hr ride of 14-15.9mph avg, it gives me about 1350 more to eat. So far, I've lost 8lbs..slowly(slow is good)... we're talking 2mos. My program was 'thrown' for a couple weeks b/c of some gastric issues lately.
4. For rides less than 2hrs, just liquids (HEET and water). Over 2 hrs, I try to take some kind of solid food,but since I haven't gone really long yet, I'm still just using Sport Beans to supplement my liquids (water, Perpeteum..and sometimes Accel Gel too). I haven't really done any targeted training yet.. Just starting and getting good advice. 
5. Post Ride Routine is to drink a serving of Recoverite ASAP after ride. Get home (if not already there) and eat "real" food, drink more water. I try to take in as many calories (net of what was eaten on bike) to replace what I used riding. I estimate that with my iPhone "Lose it!" app or my Garmin705. I'm sure they aren't incredibly accurate, but don't have a better way to estimate it. I try to take in proteins (chicken usually, or nuts..sometimes fish), and carbs (pasta or rice)...with assorted veggies..and some fats (cheese). Sometimes I allow myself to be "bad" after a good longer ride.
6. I don't think I really have a recovery strategy for my legs. I suppose walking and stretching would be good, but I don't really have a 'program' per se to drain the lactic acid.
7. TT is really well supported. They have water, ice, Powerade, and lots of fruit.. also usually some kind of Sweet-N-Salty bar (that brand) to eat at every rest stop. I can bring my own too, but its not really necessary with all the food they have (unless I just want something else). Ive taken Accel Gel or Sport Beans to supplement in yrs past. Some rest stops have stuff like mini pb sandwiches... Those were golden to me by mile 60. Sooo good.
8. I did the 2008 Saturday Tulsa Tough century in 7hrs...prob my best 100mile time of all my centuries. That was my first century in about 12yrs though.
9. Last year, I did much of the first day by myself, but did catch some draft from some GREAT folks in a riding club from Springfield MO for about 20miles(mile 65-85). They were a life saver b/c we were heading right into the wind. So..my answer is yes.. occasionally a group will pass through that don't mind if I tag along.
10. Saturday = 5200ft, Sunday = 5900ft
FREEBIE - favorite decadent dessert is the Bread Pudding from TeiKei's in Tulsa.

Originally Posted by
Vireo
I often do back to back days since my training has to be done in blocks. I have my son 50% of the time and so I train ONLY when I don't have him with me. That means a block of Wed-Sunday. I've also done races and events that are 2 days and much more as in Race Across America. While my advice may not work for you it works for me and maybe some of the other members on this forum.
But first some questions:
1. How many calories are you taking in pre-ride?
2. How many calories are you taking in during the ride? Specifically how many per hour?
3. How much do you weigh?
4. What type of fuel are you using? All liquid? Liquid and solids?
5. What is your typical post ride routine? Specifically how many calories do you take in and what type of foods are they?
6. What recovery strategy do you have for your legs?
7. What will be provided at the event? Can or should you bring your own nutrition and just use the water provided?
8. How long does it take for you to do a century?
9. Are there large groups where you might have the benefit of drafting especially the second day.
10. What is the elevation gain? A century with 10k of gain is a much higher caloric expenditure than a century with 3k of gain.
And now just a freebie-- What is your favorite decadent food?
2009 Giant Avail Advanced 1
2008 Trek FX 7.5 (Commuter)
Baby Blue..retired to new rider: 2006 Giant OCR-C