Filter with Return: Cure for Vaporlock?

[rumblefish360]

Good point. No I'm not. Thanks for pointing that out.

No worries. It was the two long studs pictured along with the spacing of the holes that made me think QJ.

Thanks @Tooljunkie

 

[Johnny Dart]

Whats your timing set at ?


Also, here is the TQ gasket (insulator). Fel-Pro #60273
Very close to the one the factory used.

 

[67Dart273]

Are you sure that’s for a TQ and not a QJ?

They are the same "pattern" --why won't it work? I've run a QJ on my 340 back in the day LOL

 

[rumblefish360]

They are the same "pattern" --why won't it work? I've run a QJ on my 340 back in the day LOL

Secondary size difference issues.
The exact placement of the primaries could be an issue.

 

[RustyRatRod]

The carburetor mounting gaskets for the TQ and QJ are not the same. Post #27 shows the TQ gasket. This is a QJ gasket. Using one on the other can cause a vacuum leak.

 

[Bewy]

RRR is correct. The pri & sec bore sizes & positions are the same for the QJ & TQ.

But the channels in the base plates are different & wrong gaskets can cause a vac leak. Also, the carb pad on a QJ intake may not seal properly if a TQ is used, especially at the rear.