just can't get it together

[hotrodLSC]

got my new steering rack and outer tie rods on yesterday. car is still detonating/spitting/sputtering. i thought i may have had water in the gas, cuz i filled it up and as soon as i pulled out of the station, it started. i put STP fuel treatment. still doing it. gonna try a new ICM. if that don't work, i guess i will need a new distributor. cleaned my new cap and rotor, so that is not it. when i got the car, i put new wires/plugs/cap/rotor/and fuel filter. have any of you guys seen this? if so, what was it.

 

[NYC LS8]

What's your timing at and what grade of gas do you run? If your timing is advanced from stock and you run low grade gas, it'll detonate. If it's not that, I would try some dry gas - if there's any water in the tank, it should help dissipate it.

Good luck.

 

[Katshot]

Pull a fuel sample and inspect for water. An easy way to do this is pull the filter and dump it into a glass.

 

[hotrodLSC]

i had to replace the lower intake, and we set the timing at 10 degrees. i have been using 87. stoped in a gas station and filled up with 89, and that is when it started. last night i put about 11 gallons of 93, i toped it off. after i put the 89 in it, i put a bottle of STP fuel treatment, it said it evaporates water, and another bottle when i toped it off with 93. a buddy told me that the same thing happened with his 93 mustang GT, found out there a piece in the distributor that needed replacing, and it was doing the same thing my car is doing. if that is the case, i with just put another distributor in it.