This Sounds like it Has its Pulleys reversed and so the Blower is at Half Power now. Unfortunately BVPS does this System and if they find this bolt to be having problems they are gonna 130 it we will see for the future.
So as it turns out, these old Springfield Thunderbolts had some wacky blower setup with garbage motors. When all the old blower motors went out, they put new ones in but did not realize the belt pulleys were swapped around. We found this out when we were working in Fair Grove, we swapped the blower pulleys and it ran at full boar instead of the slower speed that this one is at. Its wack, but I doubt BVPS would be willing to fix it.
