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#1
09-17-2006, 08:38 PM
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Re: Urgent: Need Advice On 454 BBC Headers For 71 Nova
A 454 is a big motor and it needs big headers. Me and my friends make fun of big blocks when we see small block-sized 1 3/4 headers on a nice Rat motor. Might as well keep the exhaust manifolds. "You need back pressure" is a myth that header companies tell you when they want you to buy their inferior cheap, small tube headers or small mufflers.
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1962 Biscayne O-21669 MKIV/M-22 1962 Bel Air Sport Coupe 409/1,000 
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#2
09-17-2006, 09:28 PM
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Re: Urgent: Need Advice On 454 BBC Headers For 71 Nova
[ QUOTE ]
..."You need back pressure" is a myth that header companies tell you when they want you to buy their inferior cheap, small tube headers or small mufflers. [/ QUOTE ] It's not about "back pressure", it's about velocity. But, to each their own. I'm not here to argue (or even debate) the subject. Eric
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