I am just thinking out side the box , could you and a large heat exchanger to the downstream side of your heater core hoses to remote mount a exchanger with an electric fan ? Possibly adding a second remote mounted radiator ?
There has to be a way to pull more heat out of the total system.
A GMC Syclone, or a Buick Grand National have obviously dealt with the challenges of a boosted engine in an ECM controlled world.
How does a blown Small Block Chevy in a T bucket live with the small Radiator in that application ?
Hell, even a Corvair Spyder dealt with a turboed engine that had only air cooling.
Don't even get me started on how a Porsche 917 flat 12 lived with 950 H.P. and air/ oil cooling
50 Years ago.
Nothing is new under the sun

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