I run the stock 195 in my 5.3l powered 80 and it runs - 195 to 197 with brief spikes to 200 sitting at a stop light.
get rid of the 160 t-stat. and report back.
1994 FZJ80. Elocked, MAF 3/2 Lift, BFG 315 KM2s, stock 4.10s, ARB bullbar and a Warn 8074 winch.
powered by an all-aluminum 335hp L33 Vortec V8
2004 Kona Stinky dee-lux.