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I bought a pair of worked E7 heads for 125 bucks. Exhaust port has been ported and the intake ports were slightly ported. Has a three-angle valve job, HD springs that can take .550 lift and they have been decked .040. I'm planning on keeping the stock HO cam and buying 1.7 or 1.72 roller...

Hey guys, I'm having a problem with my gas mileage. It's doing 10-12 mpg's. My car runs great and when I floored it a few times, no smoke whatsoever came out of the exhaust and no backfires. No misfire or any thing. Just horrible fuel mileage. Here are my mods: Offroad 2.5 inch x pipe, two...

There's something weird. My car runs excellent, but is chugging fuel like crazy. 10 to 11 miles per gallon in city. In highway it barely waists any fuel, but in stop and go traffic, it sucks. I floored the car, no black smoke, no engine miss, checked it with timing light and it was perfect at 10...

I'm doing research for my near future purchase of 1 5/8 shorty headers. My car has stock internals, but has offroad 2.5 inch x-pipes with 40 series flowmasters. I also have K&N filter, Pro-m 75mm MAF, 65mm TB and EGR, so I stuffed the stock intake manifold with as much air as possible, and I...

I have a 65mm ford explorer throttle body with a new 65mm EGR spacer in my garage. The TPS looks exactly the same as my mustang's and it has the oil breather, but backwards. I've read how to modify it in t-moss. I'm just wondering, will I feel a difference in my throttle response? It already...