Thermo-quad Tips
 

I am attempting to build my own Thermo-quad for 72-73 340. I don't want anything on it I don't need
but, leave or modify everything I do. Is anybody willing to share any tips on successful modifications?
Fuel pressure?
Is the vacuum diaphragm on right rear necessary to regulating air door?
Is converting to Holley jets and removing the metering rods from primary circuit the best?
Is removing the choke S/S legal?
Is a -6 inlet adequate for fuel delivery at say 530 HP?

I've read about 40-50 HP differences in modified Thermo-quads so, there must be some things that work better than others.
Thanks

Re: Thermo-quad Tips
 

You might find some suggestion on this site;

http://racingfuelsystems.myfunforum....490f1b3f04bd47

Re: Thermo-quad Tips
 

I run 74 duster in ss/ja 360cid here in finland,.I have problem all the time with accelerate pump seal ring i have use blue and orange rubber,.When it gets race fuel it goes fat and after that wont work at all,.same times cant get engine runnin before I take the thermoguad at pieces and change the rubber,.here in europe we run unleaded racing vp fuel could this be the problem..thanks

Re: Thermo-quad Tips
 

Contact Jim Wahl, he's very good with these carbs. He's a member here.

Re: Thermo-quad Tips
 

Van Lant

Re: Thermo-quad Tips
 

Anyone have a sorce for thermoquad secondary jets

Re: Thermo-quad Tips
 

Sent you a message
Jim

.

Re: Thermo-quad Tips
 

You can buy the good accelerator pump seals from Ninja Fuel Systems on eBay . Compatible with ethanol laced fuel .

Re: Thermo-quad Tips
 

Holley Jets make it a lot easier to tune because readily available.

No metering rods make it a lot quicker to disassemble and assemble
as they are a pain.

Choke must remain in Carb.

-6 works fine...Big float bowl capacity

Diaphragm not vital but helpful in controlling Air Door.


My opinions.......Your results may vary.

Re: Thermo-quad Tips
 

Do you have holly jets in the secondarys, or only in the primarys