Quick question

[Bruce Plecan]

Hmm, maybe a case for the psyhic hot line?.

Plug reading, and measuring performance is the only way to find out what
makes the engine happy.
Bruce



> Would a 13.2 WOT air/fule ration be considered too lean ?  Going from 11
to
> 12 gave me a tenth in the 1/4 mile. Could 13 be considered fairly safe ?
> This is for a speed density TPI Z28 with a 730 ECM and quite a few mods.

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