Go to the Holley Terchnical pages and click on Carb Numerical Listing.
The 4010s and 4011s are on the last two pages.
Your carb is either a 650 or 800. Looks like you need to be looking at a 60 or larger jet, but check the carb list number against the page to get to stock jetting.
Let us know how it works, those carbs are CHEAP!
R.