Cast wheels for the track?

[jlwdvm]

I received my tires for my 69 Firebird TA track/street car: Toyo R888 275's and 315's. Initially I was set on Vintage Wheel Works V40's, but would like some input on durability of cast wheels with track usage. I know there are guys out there that use them and maybe I'm over-thinking this, but will they be strong enough or is a forged wheel necessary for "hobby" track usage?