gears, which one's?
 

I've already asked about this, but i need more info.
i want:
bassani off-rd x-pipe
dynomax ultra-flo cat-back
FMS 65mm t-body & egr spacer
crane hi-6 ignition & ps-91 coil
trick flow "street" intake
trick flow #1 cam(so i dont need cut pistons)
Trick flow twisted wedge heads
1.6 RR"s
30lb injs, 190.lph pump & AFPR
pro m 77mm or 80mm mass air
i may also be getting a turbo (I know a guy who has a dodge d-50, propane 351w, made a twin turbo kit himself, used to have a 302 on propn, home made single turbo kit, stock block, heads, custom cam for propn & turbo, carburated & ran 12.00's, he offered to help me make one for my stang!!!!)
i was thinking 3.55's or 3.73's, would i be able to go 150mph +
any help wanted
thanks

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1988 Mustang GT, T-5
No Smog Pump (Shorty Belt), Dumps At The End Of Stock H-Pipe (Sounds Mean), K&N Air Filter (Stock Air Box, Removed air silendcer), 198.9 rwhp @4200 (235 Motor!!), 285 lbs-ft @2900 (336 Motor!!!).

I would go with the 3.55's.

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89GT,T-5Z, D.S.S. 306 shortblock w\main support, B-303 cam, Cobra intake, GT40P heads, 1.72rr, MAC "P" headers, MAC off-road H-Pipe, MAC true-fit w\tips, 373's...and the list goes on!
Throttle Junkie Powered by Ford!
12.824 @ 107.05 MPH
PVT Blankenship leaving for BCT 14MAR01
MOS 67 Romeo

BowTie Eater,

I'd go with the 3.73's... IMHO, The 3.55's are just plain boring!

On the other hand, If you're gonna' go with a Turbo maybe the 3.55's would be the better choice.

Decisions - decisions,
Phil

I would go with the 3:55's. They will be better for road driving and still a big jump past stock 2:73's or 3:27's

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347 Stroker Motor: Balanced, 30lb Bosch Injectors, Cobra Computer, Cobra Transmission, GT40 Ported and Polished Upper and Lower, GT40 Milled Ported and Polished Heads, B303 Cam, BBK 1 5/8 Headers, March Underdrive Pulleys, Electric Fan, Accel Performance Coil, Accel 300+ Racing Wires, NGK Plugs, Ram Air, K&N Filter, 77mm Mass Air Unit, FlowMaster Exhaust w/offroad H-Pipe, Hurst Short Throw Shifter, 3:55 Gears, Ram Clutch, Cross Drilled Rotors, High Tolerant Painted Calipers and Drums.

I have the 3:73's and while i really like 'em, I almost think I should have gone with the 3:55's. Like Phil Ossifer said, decisions, decisions. I'm winding all the gears in the 1/4 mile now, revving more than 5000 rpm's in 4th gear going through the traps at 99mph. I used to be hitting 5000 rpm in third before the gear change. I've heard there's only about 300 rpm difference between the 3:55's and the 3:73's at 70mph. If your going to go turbo you might want to think 3:55 or even smaller. BTW Summit sells the Crane HI-6S ignition kit which includes the HI-6 ignition and PS-91 coil in a package for about $150, that's where I got mine.

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91 LX 5.0
Z t-5, 3:73 gear, Vortech 73mm Mass Air, Accufab 65mm TB, BBK underdrives, Crane HI-6S Ignition, BBK unequal length headers, Bassani x pipe, 2.5" Dynomax Super Turbo cat back, Kenny Brown Super Subs, Factory Five Control Arms, Mac cold air kit and more to come!

I would go with 3.55's I have tried the two and the 3.55's are a perfect all around gear.