To get off the subject slightly. I just changed out the std trunk light bulb to a LED array bulb. The bulb number is either 561 or 562 with the wire loop ends. It makes a huge difference in light, uses less power, will last for years and it looks far more modern. I favor LED lights for the interior, trunk and side indicators . Should look great in the engine compartment too. For the tail lights they are more tricky to get them to focus correctly and to work with the flasher.
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Powerlog manifold, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite.
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "