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*FormerMember* · 10-14-2004, 02:56 PM

Well, the TBI will probably net you better fuel economy.
A conversion harness and a computer re-program will probably make you life much simpler.

I don't believe you can bolt a 4 barrel onto the TBI manifold. You'll need an adapter or a new manifold. Also, the 1989 heads are different, so to use your carb manifold, you'll have to wallow out the holes. The heads use an straight bolt location, which is a wee bit different.

10-14-2004, 02:56 PM	#2
FormerMember Account Suspended Join Date: Feb 2004 Posts: 3,051	Well, the TBI will probably net you better fuel economy. A conversion harness and a computer re-program will probably make you life much simpler. I don't believe you can bolt a 4 barrel onto the TBI manifold. You'll need an adapter or a new manifold. Also, the 1989 heads are different, so to use your carb manifold, you'll have to wallow out the holes. The heads use an straight bolt location, which is a wee bit different.