Supercharged 350ci Chevy - Big Power From A Little Blower -

When you consider that the addition of a very compact supercharger on a very mild engine with stock iron heads made an additional 140 hp at the peak of its power curve representing a 38 percent power increase over normally aspirated-that's plenty impressive. The beauty of this combination is that you can drive it anywhere, and there's always power on demand. You never have to open a valve, refill a bottle, or spend additional money to go fast. Even the initial investment is reasonable at just under $2,500. In addition to the Vortec-head manifold, Magnuson offers this same blower in the more traditional 12-bolt intake-manifold configuration.

Of course, this stimulates conjecture on how this engine would respond with a better set of cylinder heads. Imagine bolting on a set of AFR 195, TFS 195, or Dart Pro 1 200cc heads and a slightly more aggressive camshaft with more lift. While that gets into more coin, the power would be ultra-impressive.

Power Numbers
The following chart and graph illustrate the big difference delivered by the Magnuson supercharger.

Test 1 is the normally aspirated 350ci Chevy with stock Vortec heads, Holley 750 carburetor, 151/48-inch headers, and Flowmaster 211/42-inch mufflers.

Test 2 is the same exact engine except with the addition of the Magna Charger 122ci supercharger.