4bbl intake question

bigtommy. It looks like you may be new to slants 6. and by the number of post you are fairly new to this site. I would say look around and learn about the slants. what you are asking (400hp) would cost you a ton of money on the slant, if even doable. How are you going to use the car? Street only, Strip only, or both?
I have a 390 holley and Offy 4bbl intake on a stock 225. It has not hurt the motor.

Mike, I will never get too much of your setup. I just love your car ****.