@DannyP, sounds like a good plan. You are absolutely right about cylinder head temperature being more accurate for EFI than oil temp. If you want one or two of those IDC headers just PM me your mailing address. Be careful with the placement of your Speeduino and the location of your coil. I had to put steel between the two no matter how much shielding I had on my VR or Hall Effect crankshaft sensors.