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  1. steve240

    87 R10 TBI to EFI fuel line and tank upgrade

    I am in the early stages of upgrading my 87 from the stock TBI 350 to a EFI ZZ6 350. I read an article on Holley’s website about upgrading to EFI tanks, in this article it shows standard high pressure fuel lines, so I ran with what I saw in the article, very helpful article if you don’t have a...
  2. steve240

    87 R10 HD Radiator Upgrade

    I’m in the process of upgrading my radiator from the factory single core to the HD Dual core radiator, the only difference in the measurement is the thickness from 1.25 to 2.25, can I use my factory 2 piece shroud or do I need to upgrade to the 1 piece big block shroud? What size is factory...

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