Would doing an exhuast heat wrap on the intake manifold help reduce intake temperatures?

Rgds

Of course. I'd get whatever is best of the market right now.

How many degrees do some of the companies claim it reduces?

Over on 190Rev I brought up jet coating. I'm not sure how effective it would be.

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89 190E

I don't think it is going to make any kind of noticable difference personally. The only heat you would be blocking is the heat coming off of the radiator when your moving.

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George Carstens