you need to keep in mind how the rest of the car is built. lets take my old ls6 chevelle which in the day at 450 crank hp. measured by todays standards about 350-375 wheel hp. now with a chassis that is closer to a 48 chev then it is something like a new zl1 camaro that you could throw a cage in it some racing tires crank up the stereo put the ace on and show richard petty your working taillights. A chassis that will corner with a new porche and be a pro stock drag car from the 60s. now i had that chevelle and today have a 2011 392 challenger. i had it dyno'd before and after a tune and it did 421 before and with a cat back annd tune it did 438 wheel hp which if you were measuring by the way they did in the 70s would be north of 500. it would eat the chevelle for lunch. and its juust in the middle of the line up today. by the way my wife got 26mpg on a trip to MN.
Buddy has a hellcat red eye. its 797 crank hp and drives like your malibu if you want it too and about tear yuor eyeballs out if you have the nerve and its built so stoutly that it would outlast 3 70 chevelles. its not moms car with a big motor like in the 60s. its built knowing its going to be beat and is about bullet proof as are the zl1 camaro and gt500 mustangs. when i here "who can handle that kind of power" it usually comes from someone who hasnt had there prius or pickup over 70. guys that would pee themselves even riding with me on a backroad. be thankful that technology is here.
look at your pickup a silverado, ram or f150 today would take the lunch money from most gto's or 396 chevelles back in the day. it will get 20mpg on the highway and comfortably pull 9k down the road. hook a 79 1/2 ton up to a 9k trailer and you will be wide open at 55mph, getting MAYBE 5mpg and you will be leaving parts on the road and youd better plan your stops a mile ahead and swap to a 3/4 ton and the only thing you will gain is a few less parts.
now crate engines ? what car guy wouldnt love a classic mustang, camaro ect with o modern 800 hp motor that still gets twice the fuel economy as the original stuffed into a modern chassis with wildwood 6 piston breaks and a transmission and rear end that will easily handle the power with tires that a 60s nascar racer would be jealous of. ive drove hundreds of different cars and trucks and have manty times said to myself "this thing needs more power. i dont rcal ever sayin you need to loose 200 hp. i just wish i was 30 years younger because the real age of the muscle car isnt the 70s its today