No affiliation with products below, but there are tech alternatives to ghetto.

Cooling:
Electric Fan Engineering website
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Engineered louvers:
Hood Louvers.com
[Linked Image]


I've seen hot-rodded cars...like an Austin-Healey 100 sporting a Chevy 383 with louvered hood and 12V compact cooling fans for engine bay heat extraction.


1987 Raider - Roxy
1988 Mighty Max 2.6L Turbo - Pearl
1997 Mountaineer V8 - Freddy
2000 Excursion V10 - Freya