Running Rough - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bobcostas · 11-11-2010, 08:24 PM

Hey Dudes,
I am so close to a daily driver i can smell it... and it smells good.

I have a 400 small block with a 4-barrel Edelbrock that i put on recently.
Now, when the motor warms up (after ~10 or 15 minutes of driving) the engine gets louder. It seems can hear the exhaust. It just runs rougher than when it was cooler. A mechanic took a look at it when I was getting the new exhaust on, and said the timing wasn't advancing as the RPMs increased. could this be causing the roughness?

thanks guys. I'm gonna post some pictures when i get 'er all done.

11-11-2010, 08:24 PM	#1
bobcostas Registered User Join Date: Mar 2010 Location: Austin, TX Posts: 104	Running Rough Hey Dudes, I am so close to a daily driver i can smell it... and it smells good. I have a 400 small block with a 4-barrel Edelbrock that i put on recently. Now, when the motor warms up (after ~10 or 15 minutes of driving) the engine gets louder. It seems can hear the exhaust. It just runs rougher than when it was cooler. A mechanic took a look at it when I was getting the new exhaust on, and said the timing wasn't advancing as the RPMs increased. could this be causing the roughness? thanks guys. I'm gonna post some pictures when i get 'er all done. __________________ '64 Corvair Ragtop '66 C10 Stepside "The oxen may be slow, but the Earth is patient"

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