1. I've been looking for info on Drag Radials also, and I found that BFGoodrich get the best reports. People are running 1.6 60 fts on them and a few guys have gone 9s. I'm going with them on my ponys, but they do make a 275/40/17 for your rims. My son will be getting those tires on his LX soon.
2. I was told that 70mm on a near stock engine is a little too big, but with yours it may work nice. If I were you I would go with 65mm, unless you plan on more mods later, and then I would go with the 70mm.
3. I would go with the C&L 76mm unit, I have heard good things about it.
4. I have no idea.
5. Actually a friend of mine gained a few horse power on the dyno from adding a high flow H-pipe over an off road. His ET didn't change though.
6. I would go with a B-303 cam and some 1.7 roller rockers.
7. Be safe and go with some 24lbs and don't forget to get the Mass Air Meter calibrated for the injectors.
I hope some of my research helps you choose your parts.
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Mine: 1991 Mustang LX, 5-speed,
Mac catback, Pulleys, K&N, Aluminum D-shaft, Pro 5.0, 3.55, Lakewood shocks, SSM lift bars, Hoosier slicks. 13.67 @ 98.
Sons: 1989 Mustang LX, Auto, Flowmaster catback, Mac H-pipe, Mac headers, Cobra intake, 1.7 roller rockers, 65mm Tbody, Mac cold air kit, 2400 stall converter, 3.73, 17x9 Cobra Rs, '01 Leather seats. 14.185 @ 96.8
Sold: 1966 Mustang Coupe, '88 5-speed, '69 302, Super turboes. Probably 15s.
For Sale: 1987 Mustang GT, Auto, Bone Stock, with air silencer.
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