Nothing should be damaged with a setup like this. Slightly higher shift points (6200rpm or under) aren't going to hurt anything, they'll just let you take advantage of the added power the rockers give. With ZZP 90lb. springs, OR pushrods, and 1.9 rockers my dad hit his 6600rpm rev limiter and no damage resulted from it. (this was at WOT in 2nd gear, so there was a lot of load on the engine) Now maybe if he did that many many many times it might damage something, but a 6200rpm shift point is pretty low for these engines, the bottom end can handle 7000+rpms no problem. The main thing stopping you from being able to rev high is the valvetrain, which with different springs and rockers you will be improving. The only thing you'll hurt the reliability of is your transmission due to the added stress you are putting on it with more power and higher revs, but any modification will do that and it shouldn't be too much of a problem if you don't race it everyday and you keep it maintained.
1990 Maroon Grand Prix STE McLaren 3.1 Intercooled Turbo, 14.695 @ 94.49 on 12psi before cam/heads/etc.
1990 Bright Red Grand Prix McLaren 3.1 Intercooled Turbo, 14.819 @ 92.72, 189whp
1999 Grand Prix GT 9.75:1|K&N|160 tstat|No Ubend/Cat/Res|UD Pulleys|Ported M90/TB/Heads|XPZ|2.55"|Pacesetters|Stage 2 I/C. 12.442 @ 112.78
2000 Blue Bonneville SSEi Supercharged Gutted Airbox|K&N|3.4"|1.9'*|WP Pulley|Custom DHP|180*stat|41932'*|No Cat. 14.681 @ 94.80
2002 Dark Cherry Grand Prix GTP Supercharged & Intercooled
12.084 @ 114.38 w/1.743 60', 315.6whp, Fastest Stock Cam M90 GTP!
NOW XP CAMMED, 340.6whp with XP, stock heads, Gen 3 M90, 11.984 @ 115.84 w/1.750 60'!
Most HP Stock Heads Gen 3 M90 GTP!
2004 Red Monte SS Supercharged K&N|3.4 Pulley|1.9'*|180*stat|41919 plugs|3" dp|No cat/ubend|DHP|Shift Kit. 14.2 @ 98
GOT BOOST??? Friends dont let friends drive stock!