Wrap the rest of your hotside. Wrap every bit of exhaust metal under the hood. Blanket on the turbo housing.
Put in the Mark viii fan.
Check your radiator for debris or crud. Flush accordingly.
A heat extracting style hood wouldn't hurt but those are only going to be noticed while moving. As the low pressure pulls the radiator fan exhaust and underhood heat out.
I put in a gt500 heat extractor vent in the middle of the hood and it made a huge difference. Even sitting still idling you can feel the heat coming out from the fan pushing it.
Dart 348ci, Ed Curtis cam/valvetrain, Precision 76mm, Holley Dominator EFI, CNP ignition, tons of Holler EFI small parts, 4"dp, 4R70W w/T-brake, new suspension coming soon.
Little 750rwhp at 6,000rpms and only 10lbs of boost before we just got tired of playing with clutches. New 4R70W and we are turning it up. Expecting 1,000rwhp.