What’s your guesses on horse power?

Thanks for all of your input guys! When I built this engine the for the first time I cared a lot less about a real number and more about seat of the pants performance, but the older I get the less time I spend at wife open throttle lol. Any guesses as to where I would be in the quarter mile with my garbage gears and o/d four speed? My near future plans include better gears and an iron case 833