72 Skylark 350 over heating

ok. I will be back to report the outcome in about an hour. Still at work.

 

That sounds like it's running lean, causing a surge.....
I think you need to really work with Larry on the timing issue?!

 

well I drove it around for a bit, then on HWY for a little bit then the same small trek back home to the drive. I let it idle for bit it heated to about 190. I attached the vac adv to the front mani port, could not hear a hiss, loud exhaust. But put my finger over it and suction was there. Put vac adv to that, NO idle change at all. Temps stayed at 190 prob because the clutch/fan was doing it's part and it was only about 80 out and overcast. Sounds like I have a bad vac adv device or worse?

 

Could this be related to it stumbling a lot from a stop till it is at running temps? The choke does hold when I start it but till it is really at runnning temps it stumbles when I hit the gas.

 

Should I take this chance and just go HEI from TAperf?

 

Looks like HEI needs 8mm wires? I just put in 7 after looking at them. And HEI, plugs should be gapped at .40, I am at .35

 

I bought one back when these issues were a problem last fall. Still in the box.
I figured why not just upgrade to HEI (100 bucks for unit from TA since I don't how old the electronic ign in it is. Those being questions asked of me last year when the over heating started possible to timing issues.

 

I figured the TA unit is a drop it in, wire it up, set timing and be done finally.

 

take it to a shop (not the one that last touched it).

 

That does not say it is for the 350 motor.

 

Ahhh, I was at this point locked in on HEI and did not see those. I am just going to buy it and run with a whole new set up.

 

When this new one is in, all said and done should I go back to ported vacuum for the unit?

 

Now if only I could get the air snorkel flapper to work, stiff as a rusty bolt, with the hose from intake vac port to the air cleaner. For another day.