Originally Posted By LaRoy Engines
I personally did a back-to-back dyno test with E3 plugs and saw a 1 horsepower gain on a 600 HP small block. I've seen greater differences doing nothing but making successive runs without changing anything.


runaway

Sold! laugh2

'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.