Ok so I am finally ready to polish my plenum. I read the article on here several times about how to do it but it looks like a really long process. I was wondering if it would help to glass bead the plenum first? Would this save me some steps and could I skip doing a lot of the hand sanding? Also if I glass beaded the runners could I get a nice shine on them too? I'm not looking for anything show quality but I love the look of the polished plenum. Thanks for any info.

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90 Formula 305 TPI 5 speed
K&N, Dynomax Muffler

 

Won't help. Your going to have to break down and do the manual labor.

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91 Z28
Best Time Slip:
60' - 2.098
1/8 - 9.137 , MPH - 76.21
1/4 - 14.213, MPH - 97.55
Performace Mods: B&B Exhaust, few free mods.
Appearance Mods: SS wheels, 2.5" Cowl Hood... New 100% Black paint job, Clear Side Marker Lights
Stereo: Alpine 855, Infinity Kappas all around, Infinity 150x2 amp (POS), Infinity Perfect 10 in hatch.
Pictures are Here
ICQ: 1437212
AOL: normalmatt9

 

If you have access to one and dont mind spending a few extra dollars...The best way to do the major flat areas is with a belt sander with a 220 grit then 400 grit etc...once you get it down some go to an 800 grit and wetsand. When i was finished with sanding mine i polished it with some stuff called white rouge on a buffing wheel

good luck

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*1989 RS
*Red, Daytona Turbo fiberglass hood, chrome 16x8 IROC wheels
*355 CID
*TPI ported plenum, SLP siamesed runners, Edelbrock high flow intake
*SLP 1 and 3/4 headers with 3 inch catback
*Richmond 3.73, Auburn Posi
*Modded 700-R4, 2800 stall converter
*eibach pro kit and hotchkis sturt tower brace

"There is no way you have a 350 in that car. They are made to have 305's and a 350 wouldnt fit"
-local parts store genius-