They both need to go, the poly box was never really any good at anything and the c&l is garbage.
I wouldn't worry about the TB, i'd leave that as is.
I'm assuming your friend that got that number had a supercharged engine since it's stock long block, you can't compare and engine that is drawing air to one that is having it forced through it.
As for how much power? That's hard to guess, but it should surely be quicker in the quarter, I probably wouldn't be happy until that mph was closer to 120.
Back in the day all testing was done at the track when we didn't have dyno's. I'm almost willing to bet cars were faster back then.
I wouldn't worry about the TB, i'd leave that as is.
I'm assuming your friend that got that number had a supercharged engine since it's stock long block, you can't compare and engine that is drawing air to one that is having it forced through it.
As for how much power? That's hard to guess, but it should surely be quicker in the quarter, I probably wouldn't be happy until that mph was closer to 120.
Back in the day all testing was done at the track when we didn't have dyno's. I'm almost willing to bet cars were faster back then.