Originally Posted by Chip

Thats one of the reasons for the GT series AFAIK, to tackle the mismatch in the context of what people are doing now with a T4 (was designed for trucks originally IIRC, lol) although possibly they have gone too far for your specific applications, they are really suited to engines that rev better than most YB's I believe (honda engines seem to be a match made in heaven for the GT for example), but thats a whole other discussion.