built 340

I've been building engines since the 70s. Just wanted to see what some other motor guys think. And 400hp I can get with a mild cam intake and carb. And no head work. I added the glass packs and starter ect because it was a bud of mines build. He's getting it dynoed and just wanted some predictions. Sock x heads flowed about 220cfm so I agree 250 would help reach the mark.