440 Source Head Opinions?

I’m interested in other types of cars, I followed the guy from Boosted Boys run the car he built in high school at SICK week, he had a 9 second average and completed the drive. He also has a rear wheel drive Toyota that has 1200 hp at the tire, 7 second runs with a 2.2 liter Honda. The thing I find funny is the race parts for the imports are made in the U.S..