Thanx for the details .
I'm keen to hear how it all turns out for you .
The long # you posted , is the GM part # and if it's never been changed during periodic overhaul , can be decoded to tell you what engine and tranny combo it was designed for ~ GM always went a little bit nuts with the fine tuning, a good thing as it turns out as you can search for a specific venturi and jet size combo once you learn what you want .
I hope you're not near the fires .
