$8,000 for a 408 W with 530 flywheel HP would be my suggestion.
I stroked my 302 to 354 with fuel injection. Dyno several times 402/422 hp/tq rear wheels.
350 rwtq at 2200 rpms.
The 354 had to much tq at low rpms. To easy to spin good tires.
The next 347 I build I changed the cam to move tq up the rpm range by a 1000 rpms. Have not cranked that motor yet.
A couple of my buddies have 427 s.o. stroked in the 620 fwhp / 630 fwq range. I had no problem keeping up with them. My car was 200 lbs lighter which help. We never lined up to see who was the fastest but on a few occasion when the other guy was spanking Porches or Vett I had no problem catching up from way behind. Gave me the impression that I was a little fastest at lower speeds to 120. Full 1/4 mile from a dead stop. I think I would be very close to them at the end.
We'll never know because I wrecked my toy.
P.S. I put over 20,000 miles on that set up. Very streetable
I have driven a couple of KC 408 powered Cobra in the 530 fwhp - 540 fwtq range in Cobra. I THINK (my butts not a dyno) my Cobra was faster.
If your looking for max hp you must match the heads, cam, intake, exhaust system and the fuel deliver. Any one piece can kill you hp.
With all this being said I think the best motor for the money is the 408 KC.
I live 600 ft above sea level.
Dwight
427 with twin supercharges
