Anyone have a Holley TBI set-up floating around? Looking to get one, and yes, I know it's a long shot. I thought I had one lined up from a family member who is a long time Fiero fanatic, but he is unable to locate it!!!

Let me know, thanks!!

What year? I think they were quite different through the years - someone correct me please if I am wrong.

quote Originally posted by DimeMachine: What year? I think they were quite different through the years - someone correct me please if I am wrong.

It's for an 84' I believe 84-86 are the same, the change is 87-88 I believe, but I could also be wrong.

I believe that the larger TBI injection unit for the Duke uses a different intake manifold with a larger bore. If you want to be creative try to find an S-10 in the junkyard with the Duke engine. Some of them have a larger throttle body but you will probably need to purchase the intake manifold that goes with it. Not certain about the interchange but the later Duke engines did have more horsepower.

------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

quote Originally posted by Dennis LaGrua: I believe that the larger TBI injection unit for the Duke uses a different intake manifold with a larger bore. If you want to be creative try to find an S-10 in the junkyard with the Duke engine. Some of them have a larger throttle body but you will probably need to purchase the intake manifold that goes with it. Not certain about the interchange but the later Duke engines did have more horsepower.

You can use it with or without the intake. That said, I have a stock intake I am porting, and opening op the bore as large as possible.

Yep, if keep the stock intake, you definitely need to port it to take advantage of the TBI.

I had one on my Duke for a while, but the engine didn't run smooth and I took it off and went back to the stock setup. Sold the Holley years ago.
They do popup for sale on Ebay from time to time.
There is 2 different models which can be used. One is a direct fit, and the other can be made to work, but I think there is something different about how the throttle cable connects and it needs some modification.