anybody out there know anything about jetting on a edel carb?? below is my engine. i was recomended the 1407 by edelbrock but it seems too rich. also what would be a good timing for it? its set at 15+ idle 35 max.

thanks
jeff

 

With the "Torker cam" u have you can run even more initial advance at idle. You can recurve the distributor
(limit the advance travel) to allow 20-24 degrees base timing at idle and 34-36@ maximum mechanical advance at hi rpm.
The long overlap (egr effect at idle) of a cam like that
really slows the burn rate of the fuel down at idle so without extra initial advance the fuel is still burning when the exhaust valve opens thus the rich smell.

Be sure the PCV valve is hooked up an the other valve cover is vented. Without a functional PCV the carb will be rich and the throttle blades will be too far open at idle.
Extra idle advance and a functional PCV will allow the carbs throttle blades to be in the right position (transfer slot exposure) at idle.

You can lean down the primary cruise fuel circuit with out effecting the WOT calibration by changin the metering rods to a #7547 (.075 x.047")
You can further lean it by changing the primary jets to a ..110" jet (.113 is stock)

change the metering rod step up springs to a blue or yellow spring to ensure the rods are down(lean) at idle and low speed cruise.

Here is lots of info on tuning your Edelbrock carb

 

i dont have a pcv on my engine because on my old engine all the pcv did was load oil residue all over my carb. how does the pcv effect the mixture of fuel? i guess i just always saw the pcv as being usless is all??? crank case oil vapors effect the fuel?
the pcv runs into my air filter right?????


(transfer slot exposure) what is meant by this???

thanks again
jeff

 

The PCV valve sits in the valve cover and goes to the carb base. The part that went to the air cleaner is the fresh air inlet to the crankcase. The PCV pulls a little vacuum on the crankcase, drawing filtered air in through the inlet, purging the crankcase of built-up blow-by vapors. If your rings are in good condition and your valve covers baffled, you shouldn't be getting oil into the intake track because of PCV.

It is a constant air leak as far as the mixture goes, but it is a beneficial item overall to the engine. And, carbs are made assuming it will be there. So, get the system hooked up before you try calibrating your carb.

The transfer slot is machined into the carb base along side the idle mixture port. You have to have the carb off and upside down to see it and verify the exposure that BIRD is talking about.