Just got a call from the spouse, sitting on the shoulder of the interstate in 9 degrees, mad as hell. We had a '97 960 engine transplanted into our '92 960; picked it up Friday, and drove it home without difficulty about 250 miles. Ambient temp in the 30s. Today, she's going up the interstate at about 65 when the engine started accelerating despite her taking foot off gas, then standing on brake. Revv'd very high when she got it stopped and put it into park. While I was on the phone with her, she did start it up again-it was idling normally, and responded to the throttle while in park, including reducing speed when she took foot off gas feed. At the moment, she's on the way to a garage near where she works, and will call if she has any further trouble.
Any suggestions about what I should have the (indy) mech look at, and whether I should plan on picking her up, rather than having her drive home this evening (35 miles to work)?
Thanks
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We have met the enemy and they is us. [Pogo] S70 cop car : Rough Rider tires& suspension, Walmart fog lights, eBay speakers, ambiance by Pall Mall, trim by Le Duc d'Tape, 8-channel THD by OEM amps

Follow up: Cruise was not on, but it felt to her as if the cruise was on/suddenly came on, set to a higher speed, but it didn't go off when she braked. Anybody know what if any differences there are between the cruise control hookups on the '92 and '97?
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We have met the enemy and they is us. [Pogo] S70 cop car : Rough Rider tires& suspension, Walmart fog lights, eBay speakers, ambiance by Pall Mall, trim by Le Duc d'Tape, 8-channel THD by OEM amps

I'm very excited to know that you were successful in doing a conversion, even though you're having a small issue now.

It sounds like a sticking throttle playing havoc with the computer. Not that I'm an expert...

I'd LOVE to hear what had to be done to get the engine to work in your car!

I was very excited to think that the transplant was going to go, but I guess we'll have to see if it really did. Unfortunately, it was done a long way from home (loong story)and I have no idea what was actually involved/done.
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We have met the enemy and they is us. [Pogo] S70 cop car : Rough Rider tires& suspension, Walmart fog lights, eBay speakers, ambiance by Pall Mall, trim by Le Duc d'Tape, 8-channel THD by OEM amps

A binding throttle linkage could cause the engine speed to stay high even after lifting your foot, but I don't see how it could cause the car to accelerate.

Something wacky with the cruise control, maybe?