Need advice racing a 380 horse crate engine

your mph might be a little low I was guessing 108 to 110 a stock 340 duster will do 98 to 100 mph . do you know your weight ?
Not sure of weight. no scales at track I was at. should weigh close to what a stock 67 barracuda weighed but I've checked for stock weights online and seen variations from 2700 to 3400 pounds. I would think 3400 would be more accurate.