Heat Shield For SU Carbs

[KenFirch]

I'm looking to install a heat shield below my SU's, to replace the stock shield.  I've been noticing a bit of stumbling after idling for 4-5 minutes at those stupid stop lights.  It may be the California 10% ethanol gas lowering the boiling point, or the fact that I haven't yet done the Spring valve adjustment/plug change.  I see Z Car Depot has one, not sure how well it works.  

Anyway, any other options or ideas out there?

Thanks, Ken

[Yarb]

Are you running headers or the factory manifold?

[KenFirch]

I've got the MSA 6-1 header installed. Pics here:

 

[Yarb]

One proven option is to have the headers ceramic coated. Jet Hot coatings in SC does a great job. Look them up on line. Great video. The heat shield IMO just circulates the heat beneath the hood.

 

[KenFirch]

Yeah, the MSA headers I bought have the "Thermal Barrier Ceramic" coating.

I guess if I want something really ugly, I could get this:

https://www.thezstore.com/product/5287/protective-header-blanket-straight-6-headers.