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Don't forget that road quality goes hand in hand with how big your stones are. Here in PA (Voted worst roads in the country several times by truckers) there are so many dips and expansion cracks its hard to feel very safe past 150~160mph
There is a 5 mile stretch of road that is straight and arrow around here and a favorite among street racing. I don't have any video of high speed runs. But needless to say we spend a lot of time out there enjoying the cars we built.
Is that your Z? You bought it built right? I thought I remember seeing this years ago right after the owner of the Z sold it for that Vette.
It was NA with a 3.9 and then TN kit which I swapped for a JWT. Now I am rocking a BP single after the right bank turbo went out. This vid is probably 18 mos old since the Z has been down, and I have been mostly just riding my bikes and justifying dumping more obscene money into a car.
Well am looking now for 3.3fd swap but my main consearn is fuel delivery at that level 7000+ rpm for say 10 or so sec
Fuel delivery would be my main concern. If you are using a stock swirl tank with a Walbro, the Walbro will suck it dry if you stay on it for a long time. That happened to me. That's why I have an external swirl tank.