Author Topic: Right Carb.  (Read 3866 times)

Offline billy 2

  • Carb lover
  • ***
  • Posts: 50
Right Carb.
« on: December 22, 2010, 07:32:28 AM »
Cliff, I have a 1976 Chevy 350 that has a complete new rebuild.  Compression ratio stock 8.5  to 1.  Heads are stock that came with the engine. It's out of a truck an 010 Block.

 Cam shaft is TM274 hydraulic.
Net lift .373 intake/.410 ex.
Duration @0.050  189 int./202 ex.
Lobe centers 102 int./116 ex.
Timing @0.050
Int. opens @9ATDC, closes @18 BTDC
Exhaust opens @37BTDC closes @15BTDC
I have a Rochester Quadrajet, Carb #17058213
Would this be a likely candidate to use on the engine; if so, how would you set it up?
 
Thanks billy 2

Offline Cliff Ruggles

  • Administrator
  • Qjet Hero
  • *****
  • Posts: 5363
Re: Right Carb.
« Reply #1 on: December 22, 2010, 12:07:51 PM »
I'm pretty sure the 17058213 is a divorced choke unit, but uses the later style single main airbleeds.  I'd set it up stock to start with, using one of our HP kits.

You may end up going back and increasing the main jet size one or two numbers for this new fuel, but start out stock, and try to free up the APT screw in the base plate.

We can send a custom external screw for it with the parts....thanks...Cliff

Offline billy 2

  • Carb lover
  • ***
  • Posts: 50
Re: Right Carb.
« Reply #2 on: December 22, 2010, 03:12:54 PM »
  Cliff  It is a divorced choke,and Idid try to remove the APT screw and the head broke. But I friend  has access to a end mill that will remove the rest of the screw. I'll be ordering a kit from you.   
     Thanks  billy 2

Offline Cliff Ruggles

  • Administrator
  • Qjet Hero
  • *****
  • Posts: 5363
Re: Right Carb.
« Reply #3 on: December 28, 2010, 04:58:00 AM »
Yep, they break off pretty easily.  I get them out by heating up the casting with a propane torch and plenty of lubricant.   They come right out in most cases.

Make sure to ask for a replacement screw, it come with a spring like an idle mixture screw...thanks......Cliff