i have a 68 289 and it has the dual diaprhagm dizzy and the three-port switch above the thermostat housing. I am wanting to get rid of all this cuz for one, i just dont like it, two i think the dizzy is junk, and three it clutters it up with all the vacuum lines runnin. Im wonderin if i should just get one of those cheap HEI's off ebay (55 bucks) or go for a used stock replacement. anybody have one that will fit a 289/302? Also in getting rid of the old dual diaph. dizzy i should be able to switch out the thermostat housing for a regular one right?

 

i stuck a ds2 dizzy off of a 302 and hooked it up to an chevy 4 pin hei module and when i got the money i bought a MSD 6AL

 

Get a stand alone MSD dizzy for now. When you upgrade the engine, you can add the external box for better spark control.

 

a stock distributor with a pertronix kit works wonders. Even better, add a MSD box for a hotter spark.

 

its popn threw the exhaust and carb ! does it stay the same 302 firing order or something else ?

 

289 = 302 firing order.

I don't know about you guys but when I see a GM distributor under the hood of a Ford it may as well have a Chlttylay 350 in it. I quit looking at it and walk on by.

I'd go with a Duraspark or a Pertronix setup.


*The HEI is about the slickest and cleanest factory electronic ignition system there was. But I'd still walk on by.

 

it has a flame thrower dizzy ! but it is popn out both ends

 

So you have it running then or is coughing and farting with no start?

Check the stupid stuff first ie, firing order is where I'd start. Maybe your a tooth or more off. Pull the cap & #1 plug then rotate the engine see if your compression stroke matches the rotor position and matches the harmonic balancer markings.

I just ran in to a similar problem last week dropping the distributor back in to my 351w. The wires were correct and the sparks at the plugs were pure and white.

I couldn't figure out for the life of me why it was coughing and farting until I stumbled upon the fact that I was keying off of the wrong set of timing marks on the harmonic balancer. About 180 degrees off, she was. I lined every thing up and she couldn't wait to run.

duhr.

 

thanks ! i have done every firing order for a 302 and its still doing it ! its like one of the wires is crossed ? hopen there was a eazy fix like swapn a plug wire!! thanks for the help