So it is obvious that the emission part of the 75 has been removed, probably long ago.  Sooo my question is, is there a benefit to replacing it or not, it would simply be a lot easier to leave it all off, we do not have all the same rules as some of your states do so it would only be done if it changed how the car performed.  What are your thoughts?

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If you're not trying to keep the car original, and your laws don't require any of it, I say "Good Riddance"!!
That crap won't actually help performance at all.

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Joel Adams
C3VR Lifetime Member #56    
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"

+1 on leaving it off. Just clutters up the engine compartment.

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My personnel opinion about emissions control stuff is that they represent everything that went wrong in the 70s with performance. I have gotten rid of that power sucking equiptment long ago. I know there are a lot of purists that disagree with my thoughts, but my vette will be far from stock as far as the motor goes. If done right the motor will thank you.

Thanks guys.  That's pretty much how I felt about it, good to hear you agree.  Car seems to be all original so far except for the usual little things, but the car when I'm done will be what I want and that doesn't necessarily mean original (assuming I can afford what I want)

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When I had a '78 L82 the AIR was already gone. After a while I removed the EGR and the rest of the smog equipment...the car ran smoother and stronger. The cleaner appearing engine bay was a bonus.

I agree with the above posters...no rules or laws like we have here in the Republik of Amerika.Ditch it. 

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GEN III 5.7L "LS6" Engine swap
TKO500 5 spd.

I agree.

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I have emissions/vacuum question.  With so much vacuum operated stuff---dampers---headlights...whatever on my 80 C3...will removing the emission stuff affect those operations at all?  I put a block off plate on the EGR and assume I ahve to jsut plug the vac lines that are associated with that...air pump....other vac parts?  HUH???  Quite a few lines to terminate or fully remove/plug/ reroute....what manual do you reference for that stuff?

 

Thanks in advance....rear emergency brake rebuild was a snap compared to replacing the heater core and blower....yikes!!

 

Soup