Need a little guidance from the gurus

I'm not anti-BB either, but for an A-body streeter, they are kindof overkill.I mean at about 10 pounds per cubic inch A's are really fun. Thats a fat 68 Barracuda fb with a 360, or a lightweight early A with even a 273,or a Demon with a 318.
And if you use the HP levels, well then a warmed up 360 at 400hp makes 3600/400=9pounds per hp, that's a fun place to be. And so a lighterA at say 2800 pounds needs just 311 hp to match it. If you put that 360 into the light A you will be at about 2800/400= 7 pounds /hp, which would require 3600/7=514hp in the bigA. While 514 is not impossible from a 360, it would hardly be considered streetable. Really 514 hp is strokerSB or BB territory.
Some one said there's no substitute for displacement. But I think more accurately,for a streeter, there's no substitute for power to weight (P/W) ratio.If you continually increase the P/W on a streeter,sooner or later, you will reach the limits of either the tires, or the chassis,or the brakes,or the bank account, or something!
But if your chassis cannot support the power,well then,it's up to you to make it safe.And the more power you make, the more everything you need; including tires and, especially, cash.
My combo sits around 8.5 or 8.0 pounds per hp, and is very streetable. Some of the guys here are down around 6 or less. I just cannot imagine that, although I'd never refuse a ride!