5.0 stockers/ distributors

Tim Ellis · 07-18-2012, 08:57 PM

Any 5.0 stockers ever have problems with a stock distributor changing timing , without the computer telling it to? I checked my timing today, it was waaay off. I reset it, then checked timing at different rpms. Stayed correct until aprox 3000. At 3500 it says 32,then after a few seconds it drops to 16. same thing at 4, 45, 5000 rpm. At 5000 it starts at 32 then drops off to 12. I pulled the distrib and it has a lot of up and down play, prob 3/16". I think it rides up or down the cam gear and retards the timing. I replaced it a year or 2 ago for a similar reason. Are most of you guys running after market, or factory distribs> By the way it's a Holley commander doing the computer controls, and my screen is only showing 30-34 everywhere, and it shows that at the same time as I get the drop, still shows correct timing. I think it doesn't know the timing is retarding. Thanks, Tim

07-18-2012, 08:57 PM	#1
Tim Ellis Member Join Date: Dec 2004 Location: Beavercreek Or. Posts: 272 Likes: 29 Liked 7 Times in 6 Posts	5.0 stockers/ distributors Any 5.0 stockers ever have problems with a stock distributor changing timing , without the computer telling it to? I checked my timing today, it was waaay off. I reset it, then checked timing at different rpms. Stayed correct until aprox 3000. At 3500 it says 32,then after a few seconds it drops to 16. same thing at 4, 45, 5000 rpm. At 5000 it starts at 32 then drops off to 12. I pulled the distrib and it has a lot of up and down play, prob 3/16". I think it rides up or down the cam gear and retards the timing. I replaced it a year or 2 ago for a similar reason. Are most of you guys running after market, or factory distribs> By the way it's a Holley commander doing the computer controls, and my screen is only showing 30-34 everywhere, and it shows that at the same time as I get the drop, still shows correct timing. I think it doesn't know the timing is retarding. Thanks, Tim