Subject line pretty much says it all...nice usable shape of course... Thanks in advance,

[This message has been edited by FisheydFool4Fyairuhz (edited 08-28-2025).]

The larger Holley TB must be used with the Edelbrock intake manifold to pick up some horsepower. Trouble is that both parts are extremely hard to find, You may wish to try and adapt a later Duke TB and intake manifold. The S-10 Dukes made more horsepower. The manifold and TB might fit but being all DIS the intake may not allow a distributor to be used,

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" 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 "