overheating

[Trish & Ted Davis <volkfolk@erols.com>]

Help!! On my '72 SB I'm having an overheating problem at sustained high 
rpm's. It gets so bad that when I stop after a long run the oil light's 
bright red (ACK!). The car's tuned, the oil's 20w50 & I use an oil 
stabilizer. The valves are set at .006, and timing is set to specs. The 
air-intake boot for the engine is good, and clamps are tight. I had to 
replace the R head (sucked a valve) w/ a used head (no pcv vent). Any 
ideas what my poor baby's problem is? We also may have a jealousy thing 
going on, as I am about to restore her twin. :( Thanks! -T