how much horsepower from my 318?

DUDE...... It's a stock engine with a 4bbl and headers...........


Since they didn't come from the factory with 600 CFM Holley carbs, Streetmaster intakes and headers, it's not stock. His engine will make more power than a stock engine. Stock means stock. If you spent years doin all the stuff you say, you would understand that. Try runnin the stuff he has on a stock class in dirt track. lol