Which engine is in my 88' Caprice Brougham?

I have an 88" Caprice Classic Brougham, I know it's a V8 but not sure if it's a 305 or a 350??? Was the 350 available on this trim package in 88'??

Thanks

Look under the hood for a sticker that tells you which engine you have. If it says 5.0 liter, then it's a 305, if it says, 5.7, then its a 350.