Nice trick for a 4150 holley

unfortunately it has no carb number anymore. The Company made their own number. Oh, forgot to mention the carb is apart. No jets, nothing. Just the main parts. Well, I put the jets sizes in I have on my current one plus 2 sizes and will start from there and will see what i have to change. Same for squirtes and cams. I have a A/F meter so it will be safe i hope. requires a bunch of test driving i'm afraid. :)