There are later model thermostat housings with sender ports cast in for emissions control senders, but again, it is going to look out of place, but maybe not as offensive as the brass tree...
https://www.summitracing.com/parts/r...make/chevrolet
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Mitch
1970 Chevelle SS
1966 Chevelle SS
1967 Camaro ss/rs
1938 Business coupe, street rod
2000 FXSTS, original owner, 13k miles
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