I did some digging on a 400 hp 302
Actually found a very good article. Not only did they get 399 hp they did it on a $1000 budget with a junk yard 302 an off the shelf cam. Off the shelf alum heads and a carb...
https://www.stangnet.com/mustang-forums/threads/guess-my-h-p-the-dyno-1-4-mile-time-thread.677534/
Look through there. Youll likely find similar set up that someone has dynoed
Definately has some rake. I never much cared for rolling the lips. I always trimmed the lip with a die grinder and cut off wheel and then sprayed some undercoating on it.