Quote:
Originally Posted by ss3011
In a production car , when the engine misfires the O2 sensor reads lean , and then starts to add more fuel to correct . Most production calibrations will only allow so much correction , and once it reaches that limit , it sets a code . A misfire is similar to what a two step does only more controlled . I am surprised your engine reads rich when on the two step . Hopefully a few more folks will chime in with their experiences .
As far as running as big a jet with no rods , I agree , too big , but remember that this particular carb has the POE system , which adds even more fuel into the primaries at WOT . He might have to put a very small primary jet , or reinstall the power piston and primary rods .
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^^^^ Read an article on one of the Burton firebirds.They claim to run a 61 pri.jet,it does not say if that's in Denver or...So say if you ran at sea level and went to a 63,that would be 11 steps leaner than the 74 that's in it now.You would think if it's that far off it would be just flat off the line.What does the car 60' 330' and ET. gsa612