Hello,

I think I used a '73 or '74 exhaust manifold on my 1970 142S. I found one on Ebay, and they sell them there fairly often. Be sure to get one without a hairline crack down the center or be prepared to do some welding. As far as fitment is concerned, the pre-1968 intake I used was not exactly flush with the FI exhaust. In other words, one piece stuck out a little farther than the other. Use of some half washers or (even better) machining by a shop will produce an acceptably flush mounting surface that won't bend or break the manifold studs and hold that gasket down firmly. As another poster mentioned, if you converted to a Weber carb with Cannon manifold, you probably won't need to do anything special.

However, if your car is in its original state, I assume it has the one piece intake\exhaust manifold and Stomberg carbs. If this is so and you need a separate intake manifold, I have an extra one lying around. Just drop me an e-mail and I'll send it out no charge if you live in the U.S. If you've still got the Strombergs, I'd recommend swapping them for something else like HS6 SU carbs. I think you'll get an H.P. boost from that alone. I know I did.

It sounds like you're about to embark on the same project I've been tinkering with on the exact same vehicle for the past several months. Best of luck to you!