Old Timer Question

I haven't been to a dragstrip in well over 25 years. Now that I am retired, I want to get back in to it, strictly for fun with the grandkids. I have an A body with a 273 2bbl that I'd like to race at the local 1/8 mile track. I had the car weighed at 3080#. If I read the NHRA indexes correctly, they rate the engine at 160HP, not the rated 180HP. Assuming a driver weight of 200#, I get about a 20:1 weight to power ratio. My old chassis book says that it should turn about 9.85 inthe 1/8th. It doesn't show speed. My question, is what speed should I expect so I can calculate optimum axle ratio?