Just had my 800 TQ restored. Runs great around the neighborhood but got back from a 40 mile trip in 85 degree temps. Shifted in 1st & 2nd, no problem but the hotter it got had all kinds of stuttering and bogging and drowneding. Couldn't get any faster than 40-42 mph. I stopped for 10 minutes, it got better for the next mile, barrely got up the hills. Engine temp was fine on the gauge, engine compartment is very hot. Was the gas boiling? Thanks

Better verify your coolant temp. Thermoquads are the best carb for hot temps because of the plastic center section. Fuel stays a good bit cooler. Sounds like your problem lies elsewhere unless the carb rebuild was goofed up.

NEED more info ......like ...

Is the carb tooo hot to touch ? ... is the intake exh-heat crossover open? .. how hot is that? what is the water temp?

WHO did the restro on the carb?

I would think vapor lock will be a fuel line heat problem not a carb trouble. Silly question but did you look at the choke to make sure it was wide open?

Heated fuel line ? ...could be. Something for him to check. ALSO see how hot the fuel pump is. The choke-blade? ... also something to check .. but if it was closed(or close to-it) .. there would be tons of black-smoke.

LEADS to another Q ...what type of choke are you using ?

OK, Scott Smith @ Harms did the resto, he has been a wealth of info. The car doesnot run hot on the temp gauge, heat crossover is open and has burned the newly powder coated intake, stock divorced choke is working and seems to be closing and opening correctly BUT everything is scorching HOT...the air cleaner, all the hoses and gas line. I'll check cooling fluid,again.

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ONE HUNDRED and THREE degrees in TX ? ....DAMN.

It is a nice 84 here

Those are the factory stock TQ fuel lines. That pic doesn't show the vac advance hose which is now conected. Has nothing to do with my issue. Before the TQ I had a 670 Holley and never had any hot issues.

Regarding gaskets. Ihave a thin cork gasket above and below a wood fibre type 1/2" thick spacer.

You might have a vacuum leak making it go lean ...and then really HOT. OR ... the carb itself is lean.

How do the plugs look? ...

I'm do for plugs. Should I go a couple of levels colder? If the engine just wants to be hot, should the colder plugs help?

How do the plugs "read" ? .... 1 or 2 steps colder would not hurt.

I would look more-for a vac-leak though.

Vacuum Leaks...effin things. A so-called friend took a can of carb cleaner or brake clean and sprayed it at my newly resto TQ ! Now the phenolic is fogged.

I think you need to get your underhood temps in check. Your other posts regarding heat problems are probably related to this problem. Get that motor and the engine compartment as cool as you can first then see where you're at.

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Before the TQ I had a 670 Holley and never had any hot issues.

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I would assume carb if you had no previous issues. Have you tuned the carb to the engine? If not start there, you may have a lean condition. Are there any other symptoms such as stumbling on take off? TQ's are tricky to tune but I like mine.

I think we got the carb tuned to the engine, one more tweak to the secondaries. No stumbling until the engine got real hot. I want it to look pure stock but i'm going to reroute the fuel filter away from the heater hoses.