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Hi All,
Just wanted to know if anyone has experience with the Spectre low profile single or double plenum air filter system to preserve the grille in the back. Would you recommend it or any other filter that allows to keep the grille in place? I would hate to go back to the motor craft. I have a 650 Holley in place with the spacer in a 71 PB.
Thanks.
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Ducatista, know there are two different stock engine screens- the later has a solid raised center to clear the air cleaner. Ultimately, clearance will depend on what intake manifold you use, as well as whether it bothers you to lose power at higher rpms due to an air cleaner top being too close to the carb top, restricting flow. One or the cleanest setups I've seen was a custom two-piece chromed screen with EFI stacks inside a Cobra or GT-40-style box in the middle. ALL the low-profile air cleaners will measurably restrict top end power. But if you don't spend much time in the upper 1/3 of your speedometer, a dropped-base cleaner with a 1-1/2" x 14" element and a flat sheet top will probably fit.
On our Pantera with SVO raised-port aluminum heads and matching high-rise intake running a Holley 700 DP, I lowered the entire engine package by 1" and STILL cannot get even the bare carburetor under any stock engine screen.
A 1.5" drop base with a 14" K&N X-Stream top and 3" tall filter (or the whole X-Stream system) will give you an air cleaner that fits under the screen and the benefit of top flow, which is a problem with other low profile options.

http://www.summitracing.com/pa...nn-66-1401/overview/
http://www.summitracing.com/parts/pro-66808/overview/
http://www.summitracing.com/pa...nn-66-3040/overview/

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