ok so im running a interstate 625 right now cause my yellowtop crapped out on me for the second time and wont be available for another month cause i think the ones for the honda/acura had a defect with the cells...anways is there anyother batteries that i could get that would be better then that intersate that i have now??.....the space i have to work with for now is 9in length and 5in wide.....or maybe i should just see about that 130amp alternator that i was looking at instead of the 70amp one i have now...hmmmm??

Batcap 800

I like the SVR 80, for the money I think it is doing a fine job for me.

Well, do you have any low voltage issues? IF not, I don't see any need to change anything.