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Originally Posted by Jay
Okay, so "duration" and "lift" are set. No cam timing (duh.) I'm sure there's spark timing, right? Would running an MSD or similar digital ignition help at all? I know RX7s have problems w/ spark at low RPM.
I've done my share of porting/polishing in conventional engines. I'm sure the same theories apply? Smoothing, enlarging, reshaping?
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Yea you could set spark timming up to a certain point( not very much). But if you have a distributer then one of the best upgrades to ignition is a blaster coil from msd. But on 13b FI, Theres nothing better than the stock ignition. When you go F/I then is when spark amplification comes handy.Also spark is not a problem at all on rx7's. If you are talking about how they run rich, its a totaly different story but has nothing to do with spark.