My modified LS intake for Quadrajet

[frank350]

Thought I would post this here for you Qjet fans. I posted this on LS1tech as well, but it's more appropriate here I think.

Couple years ago, I decided to jump on the LS bandwagon for one of my cars, a 1968 Camaro. I went with the L33 all aluminum 5.3, mild cam, headers, and, of course, fed by a Quadrajet. The problem is there are no LS intakes on the market that enable us to install a spread bore carb, other than using an adapter/spacer which I didn't want to use because of the intake volume it added and the "funnel" effect.

So I bought an Edelbrock Performer RPM LS1, had the secondary side of the intake enlarged by having two aluminum plates welded, one on each side, and had a machine shop bore the intake to match a Qjet baseplate I gave them. Here is the result.

[frank350]

Looks like uploading pics doesn't work for me....oh well...

[10132]

…I remember this conversion from the old site…I was curious how this worked out for you. Was it worth it?

[frank350]

Yes, it works perfectly. Over 6k miles already.

[77cruiser]

[rgalajda]

Amazing. What model Quadrajet? Any changes to the Quadrajet?

[77cruiser]

Should have just done this.
https://www.tapatalk.com/groups/racingf ... tml#p23315

[GTO Geoff]

Well done!
I am a fan of TQs. Same problem trying to mount a TQ to a Holley style...without using a spacer. The owner bought a Victor with a 4500 carb bolt pattern. There is enough metal in the TQ base to re-drill for the 4500 bolt pattern.

[10132]

Frank, what jetting recipe worked out best?