Pontiac - Boost Turbo, supercharged, Nitrous, EFI & other Power Adders discussed here.

          
 
 
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Old 02-08-2010, 01:14 AM
baron_ baron_ is offline
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Nice.
I like the shifter significantly more after hearing what it is. =]


8lbs, stock parts, pistons down in the hole, shifting at 5,000?
Seems like you'd be fine. You're limiting yourself as you should.
I started with a stock '74 400 and did what you did...just threw it together and was reasonable with it. It lived until i went to about 15lbs of boost (then = grenade). All stock with 100k+ miles and already had low oil pressure, though

Current motor is a mostly stock 389 and holds up well to 12lbs


That's still a lot of lift, but I guess you've got nothing to lose. I was more concerned about it being reasonably streetable in a 455....i'm sure it'll make quite a bit of power


the ebay blowoff valves work very well
50 or more mm blowoff valves new, cheap. Less than $100 usually
That's what I and a lot of other cheapasses use
Just don't trust one of the ebay cheap wastegates


the TKO is great. A little hard to shift into third sometimes, but i think that's more because I'm used to a muncie. I hear these things commonly hold up to more than their 600 torque rating. I love not having to ever adjust linkage!


That a 'carb shop' carb? Works well for you?
From what I've seen, the carb is the most important asset to any combination....running fat enough can often save you (beside maybe the cam)

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1967 GTO convertible Twin Turbo 5spd project

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