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12-15-2005 11:30 AM #1
390 heads
does a 390 2bl have differrent heads then a 390 4bl? if so can you just port out the 2bl heads a litttle?
Thanks,
John
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12-15-2005 05:14 PM #2
No some 390's used the same heads on both 2 and 4 bbls. There are many different castings though with different size chambers and ports sizes. Is there a paticular head you have in mind???
G.
I've used both X and H pipes on some builds and really the only thing that was noticeable was the change in exhaust sound.....I tend to agree with Rodger that any benefit you'd actually see/feel is...
Exhsust system