I took my heads to a local machine shop to have them inspected and resurfaced and turned out both heads were cracked.
Modular Mustangs (300 Viewing all things Tech related to 2v, 3v, and 4v modular.6L Mustangs; both sohc and dohc engines.
The Code is still present and came back after I erased.
The engine idles very rough and you can definitely tell it's a misfire from the exhaust end.
I didn't know how to test the Spider Injection and it "looked" fine so I put it back how it was.
Sub-Forums : 96 rotc graduation gifts - 04, 4V / SVT).If you use our sites or applications on or after February 20th, 2018, you are agreeing to the new.How would I go about setting the timing on the 98 Vortec?Includes GT, Cobra, Saleen, Shelby, Roush, Steeda, and other special editions.Nice car, my neighbor has one in his garage that he takes out every once in a while to wash it, come to think of it, he does have a mullet lol.OK, I had to Google "Notch" to see what you were talking about LOL.So I purchased brand new heads from jegs along with ARP headbolts.I lined the rotor terminal with the Cylinder.1 Runner on the Distributor Cap.I have a Code P0300 which is a Random Misfire Code.Current Issues: Code P0300, misfiring/Rough Idle, low Idle on Cold Start-Up, power Loss.