Re: compression readings - how bad is it?
I did my compression a few years back, and I think I was a few points below yours, I think they were all around 140 and 150. I would also question the health of your carburation. We put on a Weber last year, and noticed a very nice increase in power. I'm running the 4.16:1 tcase and 32's.....and it will pull ok, not strongly at all, in 4th. I ran it with 31's and really didn't have any problems. If you have high mileage, may think about rebuilding the stock carb, or changing it out.
Hope this helps
88.5 Samurai, SPOA,Rancho springs, Rocklobster, full cage, Schroth Harness belts, EZ locker, 32x10.50 Swampers, on board air, Weber, header etc...