Before the crash I thought I read something about putting a 4.0l head on a 4.2l motor. Does this really work or was I just dreaming? Also what other engine mods can be done to the 4.2l to pep it up? I've read about the Weber carb but was wondering what kind of choke does it use manual or elec. ? I have a 88 yj 4.2l 5 sp and am just starting to work on it.Any help would be appreciated.
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