I-Am-Chris said:Yeah Octane will give you a little boost in horsepower but nothing drastic. Now depending on what upgades you have for the car if you like running high octane I would use enigne managment. This way you can have timing and fuel maps to get the best use out of your $5 a gallon fuel
BTW my friend Willam put 361 RWHP in his 240 on pump (93) and 426 RWHP with C16 same car just really high boost and a lot of timing. That is the differences with a higher tuned car.