I'm in the (extended) process of hopping up the 258 in my Jeep J-10. It's getting a 4.0L head, old Clifford intake, and 4.0L tubular exhaust manifold (have to use that or a 4.0L header with the 4.0L head, but a 258 intake will bolt on -- exhaust port shape and position of the two center ports changed). It's an 83 with Motorcraft electronic ignition already. It will get a TFI upgrade later (Fords version of HEI, but uses an adapter cap on the older distributor rather than an entirely new distributor -- Ford 300 six parts pop right on). If you have a Ford type distributor, the TFI upgrade is easy. Just get the cap and adapter, rotor, plug wires, and coil for a 87-96 Ford 300 six. The high energy coil is the main component -- the bigger diameter cap and wires with more positive connections are required to handle the added electric power. The good thing is I have plenty room to work! I plan on using a 350 cfm Holley 2300 2Vfor now, but am looking for a 390-500 cfm 4V carb. That will actually work better, as the secondary venturis will hardly ever be used. The 350 2V is really a bit big, but it's readily available and I already have access to a couple for the right price (free!) -- just need to finish rebuilding it. I'm adding a 1/2" copper tube under the length of the Clifford intake for a bit of heating. Will still be a bit cold natured on start-up, but it's not usually THAT cold here in SC. At least not for more than a few days when some arctic wind blows down once or thrice a year. I've been working on this project for a while now, but only a little at a time. I've been remodeling my house, which takes priority. I'm just about at a point where I can stop for a couple months and get everything else caught up before I start on the kitchen and an addition! -- Frank Swygert Publisher, "American Motors Cars" Magazine (AMC) For all AMC enthusiasts http://farna.home.att.net/AMC.html (free download available!) _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list