yea i had a 80 with a yellow dot pump,not like the 1.5 was bad enough,i know some of it was the pump, it wasa pig and if ya look at the specs dont ya jack the timing up to like 1.15 or so on a yellow dot???you dont even really have to answer me,they bite that bad.....like 81-84 most pumps are same,i think in 85 on they had the idle speed boost+stuff
back in the day i transplanted an 85 na engine with a gti 5 speed into that same 80,it was like someone booted it in its na butt