single or dual are the same thing!!! if you put your'e jets at a 150hp shot, that's what you'll have with the single shot, 150hp at once, if you have a dual it will be a mere two shot's of 75hp at whatever rpm you push the buttons.. if you have 150hp on both shots thats 300hp, and thats a huge explosion with parts of your'e motor going everywhere!!!!
i had 150hp single stage on my 350 l98 tpi, with 142,000 and it finally spun a rod bearing, thats why i said in the email be conservitive, and judge how much it can handle with the miles and componets in the motor.....
