Nope. My buddy has a Shelby blocked 489 FE with a LA Enterprises billet crank, Dove high riser aluminum heads, Dove intake, T&D valvetrain, etc. in a '64 Falcon backed by a Lenco that weighs about 2500#. It's N/A and makes just south of 700HP and probably ran about $40k when built 5 years ago by Keith Craft. The car has run as fast as an 8.40 at around 165 mph.
A Procharged 400" SBF motor from Bennett will run you around $60k including the blower and make around 2000HP. Steve Petty has built a twin turbo'd SBF making around 2400HP and I think he'd sell you a copy for around $75k. These are injected motors and don't include the computer to run them either. The computer and a car built to handle all that power will run you around $100k ready to go, minus the motor/power adder. So rolling, ready to race car will be about $175k. You'll need spare trannies, heads, blower/turbos and center sections, so around another $25k, plus an enclosed trailer, dually and tools to work at the track will run about another $100k, so $300k will get you started in an Outlaw 10.5 car. Of course if you have a tendancy to crap your pants running mid 6's at over 200 mph on a slick that's about 12.5" wide, you might want to wear Depends as well.