A0136

Jim Checking water pump rotation, ignition timing and actual temp with heat gun as suggested above should be checked. Other possibility’s and thoughts. Thermostat installed upside down. Lower radiator hose collapsing. Does the lower hose a wire spring installed? Running the engine without a pressure cap, Leaking head gasket, cracked head or block. These will allow combustion gasses into the coolant. A fresh rebuild that has tight pistons will heat up quickly. Good luck hope you find the problem quickly. Steve

The 300HP / 327 used in the 67 Avanti has hydraulic lifters. The R3/4 cams were solid lifter and noisy.

I would expect the R4 with the 388 degree camshaft to be the one as far as sound goes. i would love to check that experience off the bucket list. Steve I have a 67 327 Avanti and it has a great sound but the high compression R4 with a much more radical camshaft would sound angry.

Just got mine in the mail. Looking forward to the read.

Fuel is warmed in the fuel line fuel pump and fuel filter. The return line at the filter returns some of the warmed fuel to the tank.

Hopefully the pictures that don’t show up can be restored. A lot of helpful information will be lost if they aren’t. Steve.

I had an SN60 that was stamped SN60 DO. It had an oil pressure line fitting where the dipstick would go and a drain fitting on the bottom. I ran it for a while and then replaced it with a self contained SN60. The engine oil made the supercharger hot hot all the time. Steve