focus on: On Bike Nutrition
i.e. calories in/minute/hr

you can use Perpetuem by Hammer Nutrition
and/or my old favorite... drink enteral products like Boost, Ensure... Carnation Instant Breakfast is awesome.

mileage/time vs effort/weight is a classic numbers crunch that you come face to face with. Therefore x(nutrition) = x(weight) is best addressed by either lightweight nutrition, i.e. powders, or having nutrition available while en route, i.e. Rite Aid, Walgreens, etc...

lately I've been focusing on getting away from using Perpetuem, and trying to rely more on what I can muster from my route.

I re-discovered how much I like fried Spam at the end of the day...

while en route, a favorite of mine are king sized snickers bars and a Coke

I'm not a nutritionist, but I read somewhere that your body can only assimilate about 1gm of carbohydrate per minute.
but that does not mean to consume 1 gel packet every 30 minutes. instead I focus on time/carbohydrate management.
that is... if I'm going to "bump" with a gel packet, I'll divide it in half, and consume 1/2 of it 15 minutes later.
or...
you can also do things like mix gel with water

typically I just use gel straight out of the flask or packet, and swig with water.

either way... nutrition is going to come down to what you can "Manage" while riding the bike.

Hammer Nutrition has volumes of stuff to read... it will drive you nuts....

nuts... another good one... trail mix