“In theory”, a 5.90 in the 1/8 is about a 9.25 in the 1/4.

At 2950lbs the Moroso slider shows 705hp, uncorrected....... as it sits on the starting line.
So, figure you’ll need somewhere around 6-10% more STP corrected dyno HP to end up with that figure in typical upstate NY summer air.

775hp seems like a big ask for a bread and butter bracket race pump gas 511.