gt40p

I have a 89 mustang with SBF 302 with GT40P heads and Vortech V1 blower at 10psi and running the ms3 gold box with tuner studio. In the idle control section I'm trying to find out what the valve mode is supposed to be set at inverted or normal for a stock IAC valve. Idle valve type is set at PWM...

Quick question because I couldn't find any straightforward answers. I just swapped my heads over to the GT40P's out of a 1997 Explorer. I kept the headers that I had on my Mustang and now, even after flipping my plug wires around, I'm still constantly melting wires 4, 7, and 8 because of the...

Greeting Stangnet, This is my first thread ever. I feel like I’m posting wrong because there is lots of GT40P info in here. So here goes. My Stalions a 68 Coup, 90EFI, newly machined GT40P Heads, T-5 tranny with newly installed clutch cable. I didn’t do my resurch well enough as I have newly...

Hey boys, a short while ago I had the misfortune of snapping the crank in my gt40p headed 302 (how/why it snapped I have no idea) so I am currently going through the rebuilding process to get her back on the road..I already have a shortblock all done up and ready to go..HOWEVER, when the crank...

Hello I have an 88 mustang timing is set at 12 btdc was running good now wont start unless distributor is really advanced, pings at 3k rpm and when retarded starts missing at 3k rpm/ sputters Ive replaced: Distributor, Plugs & wires Ignition coil Put a9l ecu in, when I received the car it had...