I have a 95 gt with cai, 70mm TB, mac duals, edlebrock intake and 3.73 gears. The owners manual says regular gas. The guy I bought it from said he used premium. The plugs are light grey (almost white) and 1 plug was coated with an ashy build up (i dont know if the plug issue is related. The car hasnt used any oil since i bought it 1000 km ago. The timing was at 3 degrees. It is at 10 now, I might try a little higher depending on whether I keep running premium and the price of gas, lol. Any thoughts?
regular or premium gas
- Thread starter mustard
- Start date
Numbles
Active Member
I have basically the same mods as you and I run regular gas with 14* timing. I kow every car is different but I think you can probably run a little more timing with regular and get away with it. However on race days, throw some premium in just in case.
iwashmycar
20+ Year Stangneter 
If that is all your set at you should have no problems running the regular, but as Joe said, just try it and seeif she knocks.
-Adam
-Adam
Regular is fine. As long as it's not detonating, there is nothing to worry about. If you get a tank of gas and it detonates a little bit, just back off the timing till you burn through it. If you don't have the mods to take advantage of higher octane gas, it is a waste of money.
Kurt
Kurt
DFG 5OH
Active Member
i have a stock 94 GT and it pinged like hell before i put 93 octane in it, and now it runs great, its only a few $$$ more, so its not that big of a deal.
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