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J/SA Grand Prix · 11-19-2007, 04:36 PM

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.

11-19-2007, 04:36 PM	#2
J/SA Grand Prix Junior Member Join Date: Nov 2007 Posts: 25 Likes: 0 Liked 0 Times in 0 Posts	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.