Some insight from a good friend of mine.

His words

It's smooth like a b2101 but has the rip and top end of a spec II And it's still tight and rich


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Tuning feels a little tighter/ more sensitive on the hsn Carb action is smooth LSN tuned right in. I might be a little lean on the bottom but will see on the track Top end feels like it could be very crazy revs more like the vz line I think this one is going to be great in the track. I have a 6.5 in the truck. Hopefully the mileage comes back like the vz line did. Prob won't be able to tell that on sat but with the months to come