1985 302 ho carbed not running smooth above 2000 rpm?

[DarinH]

Do u think the motor would benefit from a 1" carb spacer?

Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

[4EYED85]

I would not add anything until you fix the original problem.

[DarinH]

I have read that the 1850-12 holley carb can cause issues on motors with bigger cams upon light throttle anybody else heard of this? Light steady throttle is when my car start missing and leaning out.

Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

[DarinH]

I believe I have found the problem. This goes from dizzy to duraspark box. And it looks horrible! !

Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

[DarinH]

Check the wires at the ignition module where the plugs are. The insulation on the wiring right around the plugs tends to deteriorate which leaves bare wiring. I see this condition on alot of cars with the stock ignition still in place.

You were correct!! The wires at both the dist and box were horrid!

Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

[bwguardian]

You were correct!! The wires at both the dist and box were horrid!

Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

You can buy both plugs that have new wire leads that you can attach back into the existing wiring...as long as you can work back and find good wire. You should be okay as I have not seen many that are too bad out beyond the new wire leads. I got mine at the local NAPA but I think they may be a little cheaper at Rock Auto. Hopefully this fixes your problem.

[Tracer]

Mine was the same way...and worse...I opened up the loom and the insulation fell off most of the wires. The PO let the power steering pump spray over the engine compartment and the engine wiring harness got the worst of it. I went to a wrecker and found a wiring harness from an 80's ford truck that almost resembled mine. Had to change the whit rectangle plug and it worked. The harness was a bit longer than the mustang one but it worked. $10 bucks and it was fixed.

[DarinH]

Well i priced the two pigtails at oreilys and the total was 40$. So since I had plenty of wire I just used good butt splices and hardwired them together. Worked like a charm and runs a lot smoother now!!

Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

[81coupe]

Well i priced the two pigtails at oreilys and the total was 40$. So since I had plenty of wire I just used good butt splices and hardwired them together. Worked like a charm and runs a lot smoother now!!

Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

I did the same thing until i can get the two pig tails ends. My harness was turning into dust. Just be sure to wire the orange and purple wires correcty. The polarity of the pickup in the distributor matters.