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

Are you running headers or the factory manifold?

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

 

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.

 

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.