I need to figure out a way to make my throttle shafts air tight..or at least as close to it as I can get. They're pretty leaky right now, and that will be a problem when I get my blowthrough turbo setup underway. I don;t really want air/fuel mix blown all over my engine bay

I've thought about maybe countersinking the holes in the carb base a size larger, and sinking a plastic bushing coated in grease in ti..around the throttle shaft. Course...I have no idea where I'd get the bushings.



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"American made baby. 100% American iron. The muscle among the masses. My hero. Yep, you can take your ergonomically designed, space age, computer controlled, 4 door, cup holding map lighted split double wishbone split fold down retractable cargo covered moon roof piece of transportation and keep it. For I have felt the thunder. And I know the difference!"
JSP Motorsports
ICON Motorsports

 

I think this what you need www.carbs.net/bushings.htm


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1983 T/A LG4 w/T-tops
Rebuilt/Modified E Q-jet
Custom Dual Ram-Air
Self painted cherry red w/ restored black/grey interior
Welded Comp Eng SFC
Tokico Struts/Shocks
Hotchkis LCAs and Panhard Bar
Energy Suspension bushings all around

 

Jester
Would the leaking throttle shafts be on your 6210, Mine leak like a siv(sp).
I talked to a guy who owns a car shop an he gave a price of $65 for a rebuilt base plate You might want to email him, His name is
Jesse bignell email is bignellms@charter.net
I thought this might help.
Later
John

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82 Firebird,355,Cam 224/234, .466/.488,TH350 Tranny,650 HolleyDP,Hooker Headers(I.E. POS) Manual steering
Best 8th et 8.62@80mph.
NEW for 01
A 408,dart iron eagle heads,street dominator intake, 750 SD,cam 229/239, .497/.520, Also a big hole in the hood.
Shooting for 12's.

 

what is the combination of parts you're using? ie, engine, turbo, carb? blow through systems work killer when set up properly.

 

Yeah spud, it's the 6210. I don't think a rebuilt base will really be ebough tho..I want the tolerances pretty tight. I think if it comes to that, I'll buy a proper double pumper new. That bushing set might have potential..I have to do more research yet to see whats available.

Kevin I'm using a Holley DP with 2 Garret T3's, on a 350 with 8.5:1 CR, heavily ported 882 heads, and a 234/244 .510/.544 114LS cam.

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"American made baby. 100% American iron. The muscle among the masses. My hero. Yep, you can take your ergonomically designed, space age, computer controlled, 4 door, cup holding map lighted split double wishbone split fold down retractable cargo covered moon roof piece of transportation and keep it. For I have felt the thunder. And I know the difference!"
JSP Motorsports
ICON Motorsports

 

you may want to drop a line to the guys at the CARB SHOP. they"ve done quite a few blow through carbs for people.their number is(909)947-3575.