A Pontiac adapter should work. The only hold up might be the hole for the starter is on the wrong side if it is full circumference. Perhaps you could mirror image the plate to make it work for a Buick if it is. Does this look like something that will work? MARKS GM V8 TO R/R ZF AUTO Good luck.
I hope that isn't a multi layer circuit board. Cutting the corner off a board is a bold move. I hope it doesn't come back to bit you. Love the project! Love the soldering.
Yes very similar. I am waiting to receive data from the Danish friend. Well, this is only a two sided PCB making straight electrical connections without any electronic components on it. I could do it by soldering 17AWG wires instead similar to below picture: As this was my first project, I preferred to order the board but it was my first and last one! I will do the next one like above and save 130euro!
Nice. Those solder joints in the picture above are terrible. Glad to see you have this under control. Exciting!