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1987 454 inlet Manifor EGR Restrictors

KeyBlazer

1/2 ton status
 Premium
Joined
Jul 18, 2007
Posts
291
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103
Location
Irvine, California
I just rebuilt the 454 in my Suburban.
The motor runs well, anything above idle, but it hunts and surges at idle.
It seems to run very hot.
I realized that I did not put those little silver metal restrictors on the inlet manifold gasket EGR port.
Should I have put them in, and could it be the root of my poor running?
My brakes feel a little odd too....
 
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