10.90's with a 340

I've had the pleasure of seeing this car run locally here in AZ -- Speedworld in Wittman, AZ to be exact. He's only teched to 10.0, but I watch him pull the wheels 12-15" off the ground and whip off a 9.90 -- he then slowed for the rest of the night so he wouldn't get kicked off the track...

A streetable 340 punched out to 474ci. Full interior, leaf springs, torsion bars, and VALID Cali plates...un-freakin' real.

1971 DODGE DEMON OWNER — RON SILVA ALTA LOMA, CALIF.

Ron Silva knows a diamond-in-the-rough when he sees it. After all, how
many people visualize a $550 1971 Dodge Demon ultimately doing the
quarter mile in the 9s? Muscle car owners like to dream big, and Ron
turned his into a fire-breathing, tire-smoking behemoth that is the terror
of tracks up and down the West Coast.
Silva began with the stock unibody construction, then added a number
of enhancements from Mopar Performance. Chief among them were:
• 340 R-3 ENGINE BLOCK
• W9 ALUMINUM CYLINDER HEADS
• AN ALUMINUM CARRIER MOUNTED INTO AN 8 3/4 REAR END HOUSING
• MOPAR SUPER STOCK LEAF SPRINGS
• MOPAR TORSION BARS
To ratchet up the horsepower, the block was clearanced for the rods
and stoker crank. Silva spent considerable time lightening the block
with hand tools, in order to squeeze out another mph or two. The final
under-the-hood product displaces 474 cubic inches and lays down a
cool 700 hp.
So how much of a demon is this Demon? Recently, at Mopars at
the Strip in Las Vegas, the Demon turned a best time of 9.95 at
133.69 mph. Astoundingly, this was accomplished with a full interior,
a small block engine and tires that were only 11.5 inches wide.
Plus, he had to slow down at the end in order to pass tech.
How’s that grab ya?