New big block

Whats the compression and weight and how much work has been done to the 440-1 heads? If you have the flow numbers, then it’s a matter of plugging the data into one of the available horsepower calculators online. Plugging the weight, gear, and available hp into an eighth mile will get you fairly close to what the car may be able to run. As DodgeDifferent stated, expect to be below this figure and having to do a lot of tuning to get close to your target. Also, keep in mind accuracy information you get out of the calculators is dependent on the accuracy of the numbers plugged in (remember, garbage in = garbage out) and that the time/mph calculators are based on the car having a pile of traction. Good luck sorting everything out and keeping it off the retaining walls! This build may not actually live up to its potential without a power glide and a lower rear gear to keep the car over loading the tires/rear suspension/wheelie bars off the line.