Thread: SBC 4/7 swap headers
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Old 08-14-2012, 09:52 AM
  #5  
cncmotorsports
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Default Re: SBC 4/7 swap headers
Originally Posted by bubbaf100
What header designand size would be best for a SBC 421?

10.5 Compression AFR 235 heads,Demon 1050 carb, Edelbrock Fully Ported Super Victor, 675/645 278/284@50 106ICL 110 lobe sep. 4/7 firing order swap.
Need headers for drag use.
Are your heads spread port exhaust?
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