**NOTE** MegaSquirt v2.2 without the flyback board or inline resistors WILL NOT WORK FOR LONG! You will eventually experience a flyback circuit failure! Use MS-II with the v3 board, please! ****Warm start. My off-road toy, a 1974 Jeep Cherokee with a 6.6 liter (401) V8. MegaSquirt I v2.2 controlling fuel only, using a TBI unit from a Chevy 454 at 13-14psi. See home.off-road.com for more info. I am running a Comp Cams 256xe, which has a lobe separation of 110 degrees. Usually, cams with less than 112 degrees of lobe separation have issues with EFI, but since the Xtreme Energy cams open and close the valves faster, there is less total overlap, giving a fairly steady vacuum reading to the MAP sensor. This results in a good idle. BTW, the annoying high-pitched noise is the idle-stop vibrating against the throttle lever, I don't know how to fix this as of now.
Keywords: megasquirt, mega, squirt, 401, 6.6, V8, AMC, Jeep, cherokee, TBI, EFI, fuel, injection, flowmaster, 40, muffler, exhaust
