Swapping intake/carb on an 85 305 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Primer_72 · 02-12-2002, 10:05 PM

I pulled off the air cleaner on my 85 today and couldnt believe all the crap thats under there. I'd rather do a haedgasket job on a new Honda than on this thing.
Anyway, how could I swap my edelbrock intake/carb on without screwing with the computer. In other words, what do I need to leave on the truck? I still have to pass inspection and emissions after I get it running so I cant just throw all the old stuff out. But theres way too much sh*t under there to put back together. Im sure theres a few of you who have done this before...

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72 chevy future dragger
1993 GMC K2500
tchsusp@hotmail.com
"Built not Bought"
"Are you pondering what I'm pondering, Pinky?" -The Brain

*Fast68Chevy* · 02-13-2002, 07:28 PM

computer on 85 ? It have that ESC crap ?

answer that one first then we will go from there, the carb and dizzy are the only things different than normal ones

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Fleet as of today:
-'71 C10 CE10904 longstep, 1985 HD 350/CH465, 3.07 12 bolt leaf rear, texas truck
-72 4x4 chassis parts of all kinds f/s
-79 G20 350/th350 van-daily driver,
-lots of unused parts from 67-72 trucks and also for other years/models
Randy- Lincoln, IL

r68c30@hotmail.com http://communities.msn.com/RandyR72K5
http://communities.msn.com/196772ChevroletCSTsforever
http://communities.msn.com/ChevyTrucksforever/

Im on MSN r72k5@hotmail.com and Yahoo Fastr68@yahoo.com

© RSS Enterprises 2002

[This message has been edited by Fast68Chevy (edited February 13, 2002).]

71k5 · 02-16-2002, 08:58 PM

If you have a tough emissions/inspection program where you live, then you have to keep the junk. I have the same setup on an 85 I inherited; tried rebuilding the carb (with the wires)and it still ran crappy. I looked at all the smog pump plumbing, hoses to the vapor canister, wires, and decided to put in a spare 350 I had. BUT, there are no emissions testing where I live. As mentioned earlier, the distributor needs to be changed because the 305 used the one with the spark control/computer. You can get a cheap one off a 75 or so truck - - one that uses the 4 prong control module. Good luck!

02-12-2002, 10:05 PM	#1
Primer_72 User and Abuser Join Date: Jun 2000 Location: Merry Land Posts: 1,671	Swapping intake/carb on an 85 305 I pulled off the air cleaner on my 85 today and couldnt believe all the crap thats under there. I'd rather do a haedgasket job on a new Honda than on this thing. Anyway, how could I swap my edelbrock intake/carb on without screwing with the computer. In other words, what do I need to leave on the truck? I still have to pass inspection and emissions after I get it running so I cant just throw all the old stuff out. But theres way too much sh*t under there to put back together. Im sure theres a few of you who have done this before... ------------------ 72 chevy future dragger 1993 GMC K2500 tchsusp@hotmail.com "Built not Bought" "Are you pondering what I'm pondering, Pinky?" -The Brain __________________ RIP.... '99 Sierra 2x '93 Sierra 4x '72 C-10 Back in business: 68 C-10 lwb

02-13-2002, 07:28 PM	#2
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	computer on 85 ? It have that ESC crap ? answer that one first then we will go from there, the carb and dizzy are the only things different than normal ones ------------------ Fleet as of today: -'71 C10 CE10904 longstep, 1985 HD 350/CH465, 3.07 12 bolt leaf rear, texas truck -72 4x4 chassis parts of all kinds f/s -79 G20 350/th350 van-daily driver, -lots of unused parts from 67-72 trucks and also for other years/models Randy- Lincoln, IL r68c30@hotmail.com http://communities.msn.com/RandyR72K5 http://communities.msn.com/196772ChevroletCSTsforever http://communities.msn.com/ChevyTrucksforever/ Im on MSN r72k5@hotmail.com and Yahoo Fastr68@yahoo.com © RSS Enterprises 2002 [This message has been edited by Fast68Chevy (edited February 13, 2002).]

02-16-2002, 08:58 PM	#3
71k5 Registered User Join Date: Feb 2002 Location: Manchester, PA Posts: 138	If you have a tough emissions/inspection program where you live, then you have to keep the junk. I have the same setup on an 85 I inherited; tried rebuilding the carb (with the wires)and it still ran crappy. I looked at all the smog pump plumbing, hoses to the vapor canister, wires, and decided to put in a spare 350 I had. BUT, there are no emissions testing where I live. As mentioned earlier, the distributor needs to be changed because the 305 used the one with the spark control/computer. You can get a cheap one off a 75 or so truck - - one that uses the 4 prong control module. Good luck!



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