Mass air meter worth 11rwhp on stock 5.0??
 

I was always under the impression that changing the stock mass air meter for a bigger one didn't pick up that much hp on a stock 5.0. However in the new 5.0 they put a C&L 76mm mass air meter on a 90lx that had only pullies and a K&N. They gained 11hp and 16lb ft to the rear wheels! I wondered why my friends car with only mass air and pullies and mufflers ran so strong. Anyone else see that big of a jump from just a mass air or is this car just an exception?

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92 AOD GT, K&N, ram air, pulleys, 2 ch. flowmasters, 4:10's, shift kit, 1 5/8 mac longtubes and offroad hpipe 14.249 @ 97.34 mph before the headers and hpipe

I seen 6 or 7 rwhp on a dyno.

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1993 Mustang GT - March Ram Air & Pullies, K&N, C&L 73mm MAF, Edelbrock 65mm TB & EGR, 3.73 Gears, Super Competition Hooker Headers, 2 1/2 in. High Flow H-Pipe & 2 1/2 in. Flowmaster Cat Back, Pro 5.0 Shifter, 16* Timing Advance, 8.5mm MSD Super Cunductor Plug Wires, Romoved front Sway Bar, Nitto DragRadial, Pro-Shift Lite, LX lights