HSW timing tuner...
You can also ADVANCE timing if you should want to do that and you can set the rpm limit to activate a circuit to energize nitrous and fuel solenoids etc.. A second setting will allow control to de-activate a circuit to close solenoids etc.. It comes with a "service jumper plug" block off pigtail to take the device out of the system and return to the factory timing control.
I wish Mallory would have made such a device for the LS1 as my LT1 has a Hyfire 685 that does all (except timing advance) with a nice key pad and LED digital display instead of ricky-tic rotary dials.
Last edited by 01Z28M6; May 26, 2007 at 10:30 PM.


