i really dislike how companys discribe there cams....they list duration as being the key factor with engine size....this is not really to be the case...i feel lift is more important....duration is the cam timeing and the cam timeing controls the power range and curve characteristics
if i was running an 88 inch motor i would want the heads ported with larger valves...i would go with a 1.9 intake and a 1.6 or so exhaust...not sure how well the exhaust port is on the old shovels...never been into one
then i would look for a cam in the rpm range i want
for street and reliability most want a solid midrange cam something that closes the intake valve around 45 degrees + or - a few degrees one way or another...it will be typicaly 240 -250 duration @ .050 lift
the exhaust timeing is alittle less important but typicaly if the exhaust port doesnt flow well u want more duration then the intake and keep in mind the point which the exhaust opens the earlier it opens the better it works for longer exhaust pipes and lower rpm
also look at overlap...this is the intake opening time added to the exhaust closing time...this gives the choppy idle...it will give higher power numbers but in a more narrow power range so it wont be as friendly off the cam
also look at lift i would consider .550 lift....duration is what people use to improvise lift with...yes it works to help fill the cylinder BUT also means the motor has to rev high to fill properly and make good power...not as friendly on the street
if it was me....id go with the andrews # 3 if still available if not the S&S 514 cam is the identical cam it has more lift then the others youve listed while still keeping the power range you would want for the road if wanting alittle more top end then go with redshift 580S grind
i found these cams on nightriders website...couldnt tell you if they are available or not...but on a big motor lift is important...you are looking at cams that would work well in a sporty 883....not a 88"
those are my personal thoughts but get ahold of some shops to back up my claims...tell them what you are building and the cams you are thinking about...im sure they would agree lift is going to better for you then duration
ALSO compression...be careful...make sure you know what your dynamic compression will be with the combo of of parts...dynamic compression is very important...pretty much the later the intake valve closes the more static compression you need to raise your dynamic compression into a friendly range
i would shoot for 190-200psi in your shovel...you may find installing a particular cam that you need 11:1 static compression to get your dynamic comrpession back up around 190-200 psi which is 9.2:1 or so
there are calulators on the web for this you will need to know
rod length, bore, stroke, intake closing point, static compression, and elevation (which i always use sea level 0 ft...that way i know i will never actualy GAIN compression when i ride....if you figure 200psi into your build at 7000ft and you ride to the coast well...you may find you are at in excess of 220 and will knock like crazy on pump gas...
let us know what you decide to go with...
98 Evo 83.5ci, custom cam, 44cv, lightened ballanced crank, H-Beam rods, beehive springs, tapered pushrods, johnson hylift lifters, SE slip-ons no baffle, 101.78 hp @ 6200rpm