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Holley 58mm Throttlebody and March underdrive pulleys
Holley 58mm throttle body which will include IAC and TPS sensors, both working just fine. Throttle body was on my 383 last year and I no longer can use it. Do have the bolts for it as well.
Has minor blemish on top as seen in the pics. This was where it slightly rubbed on my stock hood and wore down just abit.
Asking $225 shipped.
March underdrive pulleys. This is the Power and Amp kit for serpentine TPI setups. Features the smaller alternator pulley so you will not go low on voltage at idle with headlights/stereo on. It works great. Pulley has few scratch marks from install and then take off from the pulley puller.
Crank pulley is lightweight aluminum. No bolts or belts included. Will require shorter belt. These pullies did give me alittle bit of power gain but most importantly a better throttle response from less engine rotating weight.
Re: Holley 58mm Throttlebody and March underdrive pulleys
Yeah they are just pulleys not much more to see, unless you want to see some other angles for whatever reason. That pic isnt the best since it was on my phone but you get the idea
CBR do wish to have both TB and pulleys? Let me know
Re: Holley 58mm Throttlebody and March underdrive pulleys
Thank you sir, off topic, I am thinking of getting NOS 05151 GM TPI kit. do you have anything good or bad to say about this kit? I saw you had a Harris Speed Works single nozzle nitrous system 150 shot, I like your Old 383 HSR mod list, and am going to do somthing similar, but 355. Thank you for your time and parts
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Stock L98 short block,HSR Intake,58mm TB, TB coolent bypass,AFPR,24lbs blue tops,TCI Street Fighter 700r4,TCI 3300 stall,Detroit NoSpin locker,373 gears, Ultimate reared cover and tube brace kit,Boyd wheels,Spohn Chrome Molly LCA's,BMR Chrome Molly Panhard bar,welded in SFC's,315-35-17 M/T D/R,245-45-17 fronts
14psi, pump gas street tune 
