Of course if you don't port match your heads and UIM the larger LIM isn't going to help much!
Even the late model SVT heads (both ports EH'd) are only 34mm & 34.5mm
The late model (larger) LIM happens to be 33.5mm/33mm & 34.5mm/34mm respectively already.
IMO with a little porting it's an ideal smooth transition!
37mm LIM isn't going to stuff any more air into a 34mm hole than a 34mm LIM is and the abrupt transition can't be good for air flow/turbulence...
...especially since the Dual Honed SVT UIM outlets are a mere 30.5mm & 32mm.
