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Ok, changed out the PV. Better, but still down on power and missing at >4000 rpm. Next is to install the WBO2 sensor to see where we are. I am going to re-do the exhaust header gasket and collector gasket before installing to make sure I don't have an exhaust leak that will make the sensor readings invalid.
One thing I noticed is that it is hard for the idle to come back down. I have it idling at 1000rpm. When I let off the throttle, it comes down to about 1400 then *slowly* drops back down to 1000 rpm (eventually). Pulling up on the gas pedal with my foot doesn't help. Checked the throttle cable and no sticking.
I noticed when checking my timing last that even though I have the black bushing in the MSD distributor (18 degrees), I am only getting 15 degrees advance. Don't know if this matters. It is uniform/consistent, revs up to max advance easily and stays there. I have the two light blue springs so it is supposed to start advancing at around 1300 and be all-in by 2500. I checked the cap for corrosion - nothing. Removed the springs and weights, everything looked fine. Sprayed a light coat of WD40 to help lubricate. No vacuum advance. No air leaks that I can find. Now I gotta research slow return to idle...
Last edited by Texasdoc; 06-23-2016 at 08:56 AM..
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