08-30-2018, 12:58 PM

Firedup6975 Firedup6975 is offline

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Join Date: Jul 2005

Location: Q-T

Posts: 1,233

Castro’s GTX is the oil we use, and the gas additive I use is STP octane booster. The 400 motor seems to like it, never had any unusual color change to my plugs.

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~MaryAnn~ AKA "Stickybuns"
1969 Firebird 400 Convertible
1978 Bandit T/A Tribute
1977 RED TA

I'm the FiredUp PY bad girl

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