part number for a SBC flywheel that weighs 20lbs?

[bobgrinex]

I used to use the vette nodular flywheel shaved to 12.5 pounds, but changed classes to a lower division. We have to use a 20lb flywheel. I have been looking around but would rather just order one from autozone or advanced. Does anyone have a part number, or what car to use, to order a 20 pound flywheel for a 10.4 clutch? AZ had one, but it's the 16lb nodular one. Thank you!

[C10]

You need the Vega flywheel i believe off the 262 v8, not sure on the number.

[bobgrinex]

Monza? I see what looks like the right one as a 84-5 Camaro with the low output v8, but the autozone listing is for a 16lb wheel and the rules say 20lbs.