A lot of shops and services seem to be closed down these days. It's getting harder to find performance parts in my experience. I was wondering if anyone knows of a good individual or company who offers porting services for the upper and middle intake manifolds and possibly boring the TB? Or heck, any good fiero performance parts sites still operational? I've only found a few still going...

Dawg was doing these mods sometime ago, might be worth trying to contact him here or at this Fiero club: http://www.westcoastfieros.com

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1965 Tempest 400 CID
2018 Chevy Colorado Z71 3.6
2017 BMW X3 3.0 T
2015 BMW 535iX M Sport
2008 G6 GT "Street" Coupe
2005 Buick 3.6 Rendezvous

Thank you Mark! I'll message them!

Bolt on larger throttle bodies for the Fiero were made by Darrel Morse but he stopped making these years ago. He also did porting of the Fiero plenum and made strut tower braces. Just one of the many parts vendors to come and go over the years.

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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 "