Originally Posted by Trainhop91
So I changed out a cracked 0331 head with a tupy 0331 from an 01 Cherokee. After cleaning things up I got it installed. I've now got a bad problem with high rpm...... Seems like it's getting a lot of air!
Either the intake manifold is not properly seated onto the block or you have a vacuum leak. If there is a fuel leak, fix it.
Most often an improperly seated intake manifold is the cause of the high rpm. Make sure the dowel pins on the head are fully engaged into the holes on the intake.
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Originally Posted by Ronald W. Reagan: Government is not the solution to our problems; Government is the problem.