I would definitely expect the Victor to be faster. The Weiand Team G is one of the worst flowing manifolds.
I went a tenth and a half quicker on a mid 11 sec combo by going from a Team G to a Holley Street Dominator on a 440.

CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax