4.0L HO Jeep Engine Build

Joe the more I think of it it can't affect ignition timing cause the ign. timing is controlled by the crank position sensor. But like you said it most likely will affect the dist. phasing if the dist. is driven off the cam. I think that's the only thing you'd have to worry about. After looking at the cam specs the cam your using is quite a bit bigger so I bet it won't make nearly as much low end cyl. pressure as the other cam so advancing it would help the low end torque. If you can only figure out a way to adjust the dist. phasing I think you'll be fine.

I wish I knew more how these new computer things worked. The thing I don't know is how the cam position sensor in the dist. works. How does the information it sends to the computer affect things??? Would it sense the cam being advanced and modify the ignition pulse signal so the phasing would be corrected??? I just don't know.

BTW: The Torino sounds like it was a ton of fun. What intake did you have to use with the 400M block with Cleveland heads? And a Fireball cam!! Man I haven't seen them advertised in yrs. I had a Crane Blazer in my old 72 Pontiac 400. If you remember the Blazer was the milder cam and the Fireball was the big dog. And if you buzzed from Carbondale to Chicago you went within 3 miles of me. I'm just off of I-55 about 3 miles. Them were some crazy days.