Hi, I'm looking at buying a t-91 mm turbo.......I'm currently in the process of building a 347 longblock but I'm kind of concerned if the cubes are too small for this turbo? Here's what I know, the compressor wheel has a 91mm inducer and a 127 mm exducer with a .96 A/R for the housing. The turbine wheel has a 105mm exducer with an A/R of 1.50 for the turbo housing. I'm told that this turbo will flow some crazy amounts of air but will it be too "BIG" for a small block? I plan on running AFR 225 heads but am I wasting my money on this 91mm? Will it spool up fast enough or will it be a dog until 5000rpm? Any help will be greatly appreciated!! Thanks for reading!