1975 360 to 390 build Duraspark Recurve question

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09-18-2013, 10:21 AM

No More Raptor

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1975 360 to 390 build Duraspark Recurve question

I am building a 390 out of my 360 that came from factory as a 2 barrel. 390 will have 4 barrel, intake etc. Does the duraspark that's in it now need to be re-curved or will it work as is?

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09-18-2013, 12:55 PM

crop harvester

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I upgraded to 390 also with no problems with same electronic ign. sytem,ran over 100k pulling heavy loads.

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09-18-2013, 01:04 PM

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thats what I wanted to hear

Thanks

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360 or 390?

raisinkain

1967 - 1972 F-100 & Larger F-Series Trucks

07-08-2005 01:25 AM

360 OR 390

HBINGER1

FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)

01-07-2003 06:13 PM

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