I'm trying to build an engine dodge 360 got it put together and it runs but it hesitates off the line. is there a book on thremo quads like tells which metering rods to uses. yes and i did take all the emission stuff off.egr,vacuum ampfier,ect...really i just want to hot rod it .and have some fun with it...the engine is in a 76 dodge aspen 4dr,the engine is a 360 4bbl

 

Go to http://www.4speedram.com/vaanth_thermo-quide.txt

 

i have an 83 mirada, with a 340 in it, and with the thermojunk, it ran 14.70s with street tires, and muffler. i spoke with a reliable source, who said to adjust your velocity valve, the spring loaded adjustment on top which controls the valve.

my advice is to buy a barry grant.

 

Are you sure the carb is in good shape? Those things were notorious for cracking the resin body. You might try adjusting the accelerator pump, if that doesn't work the springs or the metering rods need to be changed.

Best way is to get something newer, like an Edelbrock or Holley for general performance. If you are going HiPo, then BadStratRt is right.

Good luck.

 

thanks for the help, I going to keep tring to get it rite, I really want to run the TQ on the engine and when i got theTQ and opened it the insides looked brand new,a once in a life time kinda thing and after a while I should become one with the card but thanks agian for the help mike

 

hey thanks for the input. The TQ was a great find ,when I opened it up, the insides looked brand new so I'm going to keep trying to make it run ....mike TQ#9103S

 

thanks I 'm going to keep tring othe TQ ,have any opinion on the effect a rv cam would have on the off the line acelleration? mike

 

The TQ's are a great carb when they're right, the resin body helps keep the fuel cool. I was shocked when I found out a few years ago that some of the smogger big blocks came with 1,000 CFM Thermo Quads.[sm=smiley23.gif]

 

Yeah, that's how you have to feed a hungry monster.

 

I had the same type of carb on My Aspen. I had a 1980 4 door. I rebuilt the original 318 with a few performance parts, and put a thermoquad on top. I got a 4 barrel intake off of an 85 police car, ordered a comp cams, HE 260 cam, double roller chain, rhoads lifters etc..... I rebuilt the Thermoquad, and it worked pretty good. those things came in a lot of different CFM ratings. I had a 625 cfm and it was great. I tried one from a 383 when I first got the engine together and it was a bit too big, 800 cfm I think. It had bigger jets, and causd a Bog out when I floored it from a dead stop. I got the 625 at a swap meet, got a good carburetor Kit, and rebuilt it. I did the same with the 800 but it was just too big.[>:]