Need Help With 302 Problem?

[mountainman]

I Posted This In Chat Should Have Done It Here I Guess........i'm A Newbie What Can I Say. Anyway This Thing Only On The Pass Side Has The Blow/suck Gowing On At The Tailpipe And Feels Like A Miss As Well. Has Just Been Converted Over To Electronic Ignition,new Cap Rotor,8m Plug Wires,new Plugs ,new Coil. Not The Cheap Stuff High$$$ Stuff. All That Made No Change In The Blow/suck And The Miss. I Wonder If A Plug Wire Is Crossed Up, Can Anyone Send Me A Diagram Of What Wire Coming Off The Distributar Goes To What Cylindar.........thanks, Steve

 

[ugly74]

If it were crossed up plug wires, the miss would be very noticeable.
If I were you, I'd start with a compression test.

 

[744x4]

broken valve spring?take off the valve cover and start it but dont rev it up and look at the springs moving.You can change it without removing the head also so it is a easy 8 buck fix if thats what it is.

 

[302fix]

The firing order of the 302 is 1-5-4-2-6-3-7-8
302 firing order is on this thread. First page:
http://classicbroncos.com/forums/showthread.php?t=80300&highlight=firing+order

 

[gearida]

A pop in the exhaust as you described sounds like a valve problem to me as well.