Egr
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Senior User
Joined: Apr 2006
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Egr
I have an edelbrock performer w/egr on it. I obviously have egr heads,stock 2bbl carb.. It is a 78' 400 c6. My question is. What would happen if I use no smog pump, no egr(block it off) no smog crap at all, eliminate all of the vacuum b.s..? No vacuum delay valves, no vacuum spark retard. But still have smog heads and alum. egr intake. Will there be any adverse effect? What will happen to the egr port and and all that?
what do you mean by a egr carb? i have a performer on my 460 and af far am i am aware no egr stuff????. i dont have a smog pump not sure about the rest of the stuff. sorry i cant help
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
If you remove EGR, you may need to flatten the distributor's timing curve, and install richer jets. EGR engines are tuned slightly lean with a slightly advanced timing curve to compensate for the change in combustion chemistry. If you remove EGR without changing anything else, you may have some problems with pinging\detonation.
