12-19-2010, 08:29 PM
i always try to take the temp ready(w/mechanical gauge) off the head in a water jacket. that should be the hottest temp on the motor. sounds like there might be a 160* in there...i would try a 180* and relocate the mechanical for testing.
77 built 306,Trickflow Cam/Alum Heads/dome pistons/10:1comp,nv3550,duff long arms,3.5" lift,family cage,protofab rear bumper,twin sticked, and 35KM2'sG.D.I.