I'll second Carl, you need heat to a cold intake for both drivability engine longevity.
I have been down the Fenton road with coolant heat then exhaust heat. Now I run factory set up.


BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022