So I got my A body and here I am

Hi, from Finland!
I woke up and the -75 4D Valiant Brougham, 318 + 904 i bought last night was still there. -What a glorious morning!
With a relaxed pumping, since there's no working choke in that, I woke that former beauty with a half way done bodywork and took off to work, with a smile.
On the way i amused my self by watching a bit retarded fuel gauge, that needed a gentle tap to wake up and start to work -backwards... The thing I am glad to have is the digital speedometer, powered by the BT radio, since that thing moves pretty fast when i step it down the floor and the officials here would love to award me with a speeding ticket. I believe that is also the reason, why the previous owner installed that ugly gadget, when the original speedo retired...
Well... I think that the first things to which I'll try to search and find some hints to fix came up here.
- T