12:1 is a little risky. most people will say 12:1 is ok on low boost applications, as it is the "optimal" a/f ratio to tune for in FI, but most of the time it is lower for safety reasons.
being that little hairdryer pumps out so much air, 12:1 might have been a tad on the lean side. depends what kinda timing jwt decided to throw into it and what the base timing was at in the first place.
sucks it happened. rebuild better.
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97 240sx ka-t. 12.8 @ 108mph. for sale $8K in Florida.
08 mazdaspeed 3. faster + quieter = sleeper.
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