REPLY: An impossibility with an L48 ...at least from typical add on's.
You need to understand, that, the 1979 corvette was intended to be a
cruiser and not a 0-60 car.
Actually, change the rearend gear ratio and even a really mild engine
will really accellerate.
There are some down sides, like reduction in mileage, lower top end (if
that's important) and since the engine speed is higher the noise level
goes up especially on the freeway.
REPLY: A rear gear swap wont give the owner what hes looking for in
performance from an L48 ; the type of performance he is looking for
comes with an entire engine buildup of his L48 and/or a Nitrous add
(although the stock L48 wouldnt be able to handle much , if any Nitrous.