74 2.7 CIS Engine Rebuild., Modifiy the 2.7-6 engine or keep is stock? Options

[tach]

I rebuilding my 914 street only use 2.7 6 engine in my 914. I can rebuild to stock configuration or I can modify this engine with higher compression add PMO carbs and twin plug ignition and other goodies. The additional extra cost would be about $7000 over the stock rebuild. I have rebuilt several of these 2.7 and modified them on 911 cars. But, Is it worth spending the extra money doing this when it comes time to sell a 914 with a beefed up engine 4 of 5 years from now. Its plenty fast and fun with the stock 2.7 liter.

[JmuRiz]

Question: What's the reason for the rebuild?

Does it have bad leak-down numbers?

Like others are saying, rebuilding a 911 engine with plans on getting that money back when selling....doesn't happen.

Build how you like it and take the loss with smiles and fond memories of the fun.

Twin plug is not needed on an engine under 10.5:1 CR (from what I've been told)

If the leak-down are good and you just want a little more 'umph' you can put in SC grind cams and keep everything else, including the CIS. Let me know if that's of interest to you, as I was planning this route before finding more and more issues as the teardown proceeded. I have a set of 3 bearing SC grinds. Would be a CHEAP way to boost power on the top-end.