I'm looking around for a good camshaft that would help increase my fuel economy. I own a 97 XJ. I will be porting the exhaust ports on the head at the same time I do a camshaft swap. What sort of specs should I look for to get a more fuel efficient camshaft? Here's a stock replacement cam:
https://www.summitracing.com/parts/m...model/cherokee
and some other ones I found
Crower Level 2
https://www.summitracing.com/parts/c...ions/year/1997
Crower Level 4
https://www.summitracing.com/parts/c...ions/year/1997
Mopar
https://www.summitracing.com/parts/dcc-4529229
Howard Cams
https://www.summitracing.com/parts/hrs-320111-12
If you don't want to click through all those, just some general tips on what kind of cam I should get to maximize fuel efficiency would be great! Keep in mind that I will be porting the exhaust valves because they are too small on stock cylinder heads.