how much estimated hp

i have a 350 with 9:1 flat top pistons, edelbrock rpm air gap manifold and performer 650 carb, brodix aluminum ik 200's, magnum roller rocker arms an extreme cam 268/280 by comp 2.5 flowmasters and a powerglide tranny

Take it down the 1/4 mile, get a mph, forget the et. There are calculators that can closely estimate the hp based on total car weight and trap speed, any other way there are too many variables.

probaly around 350