A: I would go with the AMC 2.5L and Renix TBI (or later EFI) and a 4 speed auto (The Jeeps came with them on 4 cyls after '89, so you'd just need a 2wd one. They are like the AW4 but not exactly) For those that like the 2.0L, there is a pair of Porsches for sale, just down the hill from my place in S. Seattle (they've been sitting at least 5 years now) One had a good motor and rotten body (due to leaky sunroof) and the other had a nice body but blown motor. From: farna@xxxxxxx Subject: Re: 77 Gremlin 2.0 automatic To: mail@xxxxxxxxxxxx Message-ID: <ADVANCES62mcK8r6beU000006b1@xxxxxxxxxxxxxxxxxxxxxxx> With an auto trans??? You shouldn't expect the mileage of the Nissan, which should be approaching 30 mpg on the highway (mid to low 20s around town). You might do as good as 25-26 on the highway, 19-20 around town. Could be a little better, but the 2.0L is really working in a Gremlin with auto trans! Rear axle is 3.55 or so (I know a Concord used a 3.58, lowest stock gear I've seen in an AMC!). If it's got a/c it will be 2-3 mpg less with that on. If you don't have any long distance cruising it should be okay. One thing you need to do right away is install a Pertronix ignition module. The only people I've tlaked to who have had a 2.0L long term (in a 79 Spirit, with four speed) said they noticed a small increase in power and economy iwth the Pertronix. Now I don't know how good the original points were before the Pertronix was installed, but the engine has just adequate power for a car that weight, so a 2-3 hp difference is noticed! Unless you happen to have a junkyard with ! a Porsche 944 in it waiting to have the EFI and electronic system yanked off... On that note, a GM 2.5L TBI system would work well on it. The 2.0L uses a two stage Weber carb though, so TBI probably won't improve much more than 3-4 hp and 1-2 mpg. Might not be worth the hassle (but I would for a driver, if the parts can be picked up cheap, like in a local pick-n-pull), but the Pertronix certainly is since it's a half hour job (at the most) and just drops in!