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About to change to either a PG or th350, don't know which based on.....

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Old 09-14-2009, 09:22 PM
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Default About to change to either a PG or th350, don't know which based on.....

About to get rid of my m6 and I can't figure if I need a th350 or a powerglide. I drive this car maybe once a month on the street. My car makes about 390rwhp through a m6 and 9" rear end, soon will add 150 shot of nitrous.

I have removed my rear seats, power steering, complete A/C system, spare tire, complete radio system is gone. Weld Prostar 15x3 up front and Weld 15x8 in the rear.

I've heard the car needs to be either less than 3,000lbs or make a bunch of horsepower for a powerglide to be worth it. With my specs would I be faster with a powerglide or the th350. I have 3.89 gears by the way and shift at 6800rpms. I can change my gears if I have to in order for the powerglide to be faster than the th350. Unless you still think it won't be faster?

I just for sure don't want to lose time in the 1/8th or 1/4 mile when I switch from a m6 to a powerglide.

So powerglide or th350? If th350 what do I need to do to make powerglide worth it? Thanks for any help.
Old 09-16-2009, 11:22 AM
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Go with a three speed, either the 350 or 400. The power glide has a very high first gear and with only 390rwhp it's going to make the car a dog out of the hole.

If you want to make a power glide work get about 300-400 more horsepower.




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