Re: 5.4 DOHC vs built 4.6
5.3 = Longtubes. you will need them if you stay na
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BB/S 324 kooks sully accufab cams heads valves bs3 ls1coils sully rails aeromotive regulator Weldon pump 8gal cell batt in trunk tko500(faceplated) spool upr k foxbody spindles metco upper an lowers 502rwhp.
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