I hate stock carb, upgrade to 500 Holley on V-6??
 

My stock carb just took a crap on my V-6, I already have the 500 cfm Holley carb and wanna upgrade, what do I need to put it on my V-6? and how do I do it?

Thanks in advance.

Paul :)

Re: I hate stock carb, upgrade to 500 Holley on V-6??
 

GMC V6? Here's the info you need:
http://www.6066gmcguy.org/holley.htm

Re: I hate stock carb, upgrade to 500 Holley on V-6??
 

I think you need to get a trapezoid to Holley 2bbl. adapter made. The bolt patterns are different between 305 and 351+ V6's for the carbs. 351 is a trapezoid, 305 a normal rectangle.

You could go the other route and make your intake in to a 4bbl. one. You can do that with a 351 and up V6 intake. Theres pics of one online somewhere, I think I sent you the link once, Fatman. :thumbs:

Either way a carb upgrade is good for the V6. Makes them much more responsive (even though they are kinda slugs) and powerful.

Re: I hate stock carb, upgrade to 500 Holley on V-6??
 

WyoRoadDog, Thanks for the link, I've been to that site many times before, I don't know how I could forget to check it
:rolleyes:

Jake, yes you sent me that link before but I couldn't find it, I found it just now, I tried the upgrade back in '03, bought the stromberg to holley adapter and the carb, put it on and got it running but the truck smoked like a freight train so I took it off and put the old carb back on and stashed the holley away, now I have to to upgrade, I may be going with a 351 intake now.

Thanks. :)

Re: I hate stock carb, upgrade to 500 Holley on V-6??
 

Was it fuel smoke (too rich or lean) or engine smoke, like burning oil? Either way, have fun with it.

Re: I hate stock carb, upgrade to 500 Holley on V-6??
 

It was fuel smoke, (running too rich) I've read the 6066gmc page and I noticed it has been updated, that shiney intake wasn't there before and some more facts have beed added. :)

Re: I hate stock carb, upgrade to 500 Holley on V-6??
 

You gonna sell that carb Fatman after you remove it? I am trying to stockpile V-6 parts for mine should I ever need any..........

Re: I hate stock carb, upgrade to 500 Holley on V-6??
 

Mine smoked pretty bad when I first put the carb on. I fooled with the float and adjusted the idle fuel mixture settings. Runs better now but still puffs out black clouds when you rev it. And now it's starting to puff blue smoke out when you first start it up.

Re: I hate stock carb, upgrade to 500 Holley on V-6??
 

Heck no, ain't selling it!! one man's junk is another man's treasure, to me is junk, I'll just give it to you when I get to take it off, how's that? besides I know where I can get a whole 305 from pan to carb ;) :D



Oh ok I see now, I did mess with it for a lil' while but I have the attention spam of a goldfish to fool with it longer than 5 min :o

I'll get to to do it again sometime this weekend, post some pics of your setup, Thanks for the feedback. :)