Re: Additives: what works what doesn't?
I used SeaFoam on my '73 Blazer and had good results. I slowly poured it in the carb while giving it a little throttle, man what a smokescreen. Ive read you can also put it in your vacuum lines and even pour some in the valve covers but you have to change your oil right after.
Lucas trans additive and fuel system cleaner also gave me good results.
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1986 C10 - LWB, 305/700r4, posi, vortec heads
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