i have the old school pacesetters with the largest primaries. i think they might have been 1 7/8 but idk. it felt like i lost lowend some just because i dident have that emuphh any more, but watching the speedo it was picking up faster. it seems like with the greater top-end that some bottom-end was lost but i dont think that is the case.

i say keep moding and dont worry about it, wont make that much of a difference anyways.