What is applicable to one engine size may not be suitable for another. It is of interest and is beneficial to understand the fundamentals behind this sort of thing though. This one was opposite of the usual split duration cam profiles. You could tailor each in different ways to perform differently in various weight and gearing combinations. It does help to know what you want out of it before even choosing an engine for the application but that's not always that easy.custom ground Oregon Cams 260I / 248E .440 / 437
Once you decide, whats best for weight and gearing.. in this case a bbc 454 you can tailor to suit. Some of the offbeat cam choices are interesting and are worth running in a dyno simulation program. Heads intake etc can be matched up in the same way.. There are various ways to shift that torque curve around a bit and some ways will likely produce better fuel mileage than others.
Do pay attention to the lift side of the cam, the dyno programs are quite good in that regard also. If 50 thou less lift only looses 5hp at peak, that could also be a 5 mpg gain right there. Smaller ports and valves work nicely with higher compression in the lower and midrange again benefitting fuel mileage. The port velocity thing.. If you can't use cam lift to put power where you want, you can still feed in with duration being mindful that will raise and lower combustion chamber pressures too. They need to stay up for fuel mileage. LSA does play a big role in how the combo will feel. LSA is just a number derived from the opening / close points of the valves so can be looked at/ discussed from the individual points or the end result.
I've run lsa from 104/ 108/ 110/ 112/ and 114 .. Of course duration and lift will change how each acts and then you have split or non/ and varying lifts in to ex..
They all have their benefits and drawbacks.. Knowing what you want and knowing what you will get from each is very important. Guessing wrong and putting up with a doggy fuel guzzler isn't the way to go.. Well worth talking it through drawing on all the real life examples you can find.