correct battery for 383 Challenger with AC?

I'm getting ready to replace the battery in my '70 RT/SE. Unfortunately, there is no broadcast sheet, so I can't be totally sure what battery it came with.
I know it's most likely a Group 24, but I'm wondering if anyone here has a similar '70 383 automatic with AC E-body and a broadcast sheet that perhaps shows a Group 27..I think it's option code F25?
My car does have the 3.55 axle package with the 956 rad as well.
thanks for any info!

shouldn't that be a red cap group 27

My 70 RR,with 383,ac,power everything car came with group 27.

what's happenin' rm23j8g - my '70 383 auto, a/c, 961, 3.23 has the F23 option, hope this helps - best of luck with your Challenger