What intake, What carb. ?

[J10/J20 Project]

Hey All,
Just curious what I should be looking for? I would like to put on a Qaudra jet. Read alot of good things here about them.
I have both types of stock intakes, squarebore and spreadbore. I also have a 4350 motorcraft.
What would be my best combo?

[ February 24, 2004, 09:23 PM: Message edited by: J10/J20 Project ]

[illegalFSJ]

My first choice is an Edelbrock Performer intake with a Quadrajet carb.

[J10/J20 Project]

if I had some cash I would also go that route. smile.gif I'm working with what I have. If all I need is a Q-jet to put on one of these setups it will be alot less than dinner. lol Still looking for a performer in the yards. I would like to put the Q-jet on. I think the last Q-jet I looked under apeared to look like a spreadbore.

[ February 24, 2004, 09:28 PM: Message edited by: J10/J20 Project ]

[jode]

Originally posted by J10/J20 Project:
I think the last Q-jet I looked under apeared to look like a spreadbore.True, but you do realize that the spreadbore under a 4350 and the spreadbore under a Q-jet are two separate animals right? Totally non-interchangable.

In other words...if that spreadbore intake you have fits the 4350, then it will fit ONLY one other carb...and that is the 4300 (which is essentially the same thing)

[J10/J20 Project]

So, I should be able to bolt on Q-Jet no problem to my amc squarebore? Just have to work out the linkage.

[ February 24, 2004, 10:10 PM: Message edited by: J10/J20 Project ]

[AMX factor]

Paul, use the squarebore intake and get a speadbore adapter and use the Q-jet. The AMC spreadbore intake will only take a MC 4350 or 4300. They are spreadbores also but a diffent pattern than the Q-jet. Plus finding a MC spread to squarebore adpater is near to impossible.
squarebore + spreadbore adpater = Q-jet

[J10/J20 Project]

ok, just the answer I was looking for.
What year carb. should I get?
Any year better than the other?

[ February 24, 2004, 11:23 PM: Message edited by: J10/J20 Project ]

[1BDWAGN]

Yes, there are a lot of different opinions on this but I would say a late 70's Q-jet would be the most desirable. Most are about 800 cfm (more than you need but it is a vacuum secondary carb). They have an electric choke, part throttle adjustment, and better casting quality than earlier units. I would look for a book about Rochester Quadrajets written by Doug Roe. It will help you tune, troubleshoot, and modify the Quadrajet for your particular needs.

[davez26]

The Doug Roe book is awesome!, almost to much info, but easy to understand and well worth the money. I used an early '80's Quadrajet from a Monte Carlo. I picked it because it was a 750 and had the sideways fuel inlet that I like better for clearance. As for linkage, I hacked the throttle arm from my old 2150 and carefully welded it to the Quadrajet.