I've been reading conflicting information on this topic. Some state that the 1970 Nova, if equipped with a Big Block 396 (402), a Turbo Hydro 350 Trans wouldn't have been available, only the TH 400 would have been. Is this true? My 396 appears to be original and does have the TH 350 with a floor shift but some have stated, this wouldn't have been a viable combination. ?