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Old 11-19-2007, 03:21 PM   #1
Speedracer
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Default Re: hello, I'm new

Whatever combo you choose,you will need a good acid man.
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Old 11-19-2007, 04:36 PM   #2
J/SA Grand Prix
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Default Re: hello, I'm new

from looking on the NHRA website, it seems that 72' only had a 300 horse 455. Why are you saying that the 455 is a better combo when you can't turn as many rpms safely as a 400? Just trying to figure out what combo will go best in my grand prix. I have heard about acid etching from a few stock racers around here but you can't do it a very big amount because NHRA is cracking down on etchers now. Please let me know on any 400/455 combo's that any of you have built and what would be the way to go. I appreciate all your replies.
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Old 11-19-2007, 04:44 PM   #3
Harry 6674
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Default Re: hello, I'm new

The 455 is a good low rpm torque motor and I think thats what it will take to move that much weight at the start. Big rpms are hard on parts ia an engine that wasn't designed for it. Use the 455s big torque it will be cheaper and its been proven competitive.
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