130# seems low to me too. All four of my 028 supers hold better than 155. But it's possible it's your guage too, compare it against another saw??
Check out that vent tube real well (semi clear fuel line w/grub screw). If it is original and really stiff, I'd replace it. They tend to get hard over time and either pizz fuel all over you or lock up tighter than a drum and starve the carb for fuel. Common malady for this family of saws, but a really simple fix.
I'd also replace both the fuel and impulse lines while I had it stripped down. New fuel filter too. Then I'd take a look inside the carb and particularly where Fish mentions, the fine screen at the carb inlet. If your metering diaphram is stiff or otherwise suspect, put a carb kit in it.
If fuel delivery system is ruled out, time to pressure/vac test the case. Though I'm not thinking that's your problem. Check out your muffler too, see if your spark arrestor is plugged (if it's stihl in there...). Does the saw run smokey/rich? Or in the past? This I find more a typical problem with the little saws (009/011/012, 020, etc), but could be influencing yours too? Good luck.