Has a beefed up cam no a/c standard alternator

Last edited by docsmith (1/30/2021 11:19 AM)

Hmm... thought this was a thread about me.

Bearing Bob wrote:

Hmm... thought this was a thread about me.

So did I!  I was so disappointed...
 

So the cam has been changed, does it still have the stock carb?  We can guide you through setting the idle if we know what carb it has. 

1.) On a warm engine first verify base timing is correct.  Then set the idle speed as close to stock as possible.  With a bigger cam you may need more idle RPM to get it to idle comfortably.  Once you are happy with the idle shut the engine off and go to step 2.

2.) Turn both idle mixture screws completely in (fully seated, but do not tighten), then back them both out 1.5 turns from fully seated.  Connect a vacuum gauge to the carb vacuum port.  Adjust the screws 1/4 turn in and see if vacuum drops.  If it drops, go back out 1/4 turn, then 1/4 turn at a time until you get the highest vacuum reading.  If it doesn't drop when you go in 1/4 turn go to 2a.

2a.) Keep going in at 1/4 turn intervals until it drops, then readjust out for highest vacuum reading. 

3.) Once you have highest vacuum readjust the idle speed to where it idles most comfortably (as close to stock as possible, but may need to be higher due to the cam). 

Beyond this there may be benefit to adjusting the timing curve and base timing, which will necessitate resetting the idle speed and mixture again, but there is a considerable performance gain in getting the timing right.  Fords tend to have a lazy curve and too little timing stock, even for a stock engine. 

Last edited by TKOPerformance (1/31/2021 9:03 AM)

If its a low compression engine, which with a 2V carb I'm betting it is unless changes were made, you'll probably want max advance more in the 38-42 degree range.  The chambers and pistons in these engines do not make for efficient combustion, so they need a ton more lead.  Its unlikely it will detonate even on regular fuel because the compression is just too low. 

What-up-doc?.........................Are you experienced with taking FoMoCo distrib's apart?  Unlike a
'durned-old-shivel-lay' replacing the advance springs in a Ford requires taking the distrib apart.  Not hard just......different.
You will also need a timing tape to stick on your balancer.......and a timing light.. Nothing real expensive and basic tune up tools for a box.
6sally6
I see where Amazon has the springs & stuff for a Shivel-lay for under $5 bux. springs is springs..will work on a FoMoCo.....MoPar.....Jeep.....Use the lightest set in the kit.

Last edited by 6sally6 (1/31/2021 7:19 PM)