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GUMP · 11-24-2019, 02:25 PM

We are working on an L99 for my 1995 Firebird for SS/GT. It makes decent power with the stock intake manifold. How much can I expect to gain if I go to a sheet metal intake or single plain intake with an elbow?

11-24-2019, 02:25 PM	#1
GUMP VIP Member Join Date: May 2002 Location: Shelby, NC Posts: 1,819 Likes: 2,163 Liked 2,344 Times in 551 Posts	L99/LT1 SS Intake Manifold We are working on an L99 for my 1995 Firebird for SS/GT. It makes decent power with the stock intake manifold. How much can I expect to gain if I go to a sheet metal intake or single plain intake with an elbow?