With an 8" wheel I would go with 4" backspacing. There will still be PLENTY of room. Any more backspacing and the wheels will look very "sucked in." Regardless of backspacing 8" wheels on a 70 Chevelle are going to look small all the way around. 9.5" up front and 11" out back fit easily and fill things out much more nicely. You could also run 9.5" all the way around if you wanted.
FYI, 9-10.5" is the manufacturer's wheel width specs for a 265/40/18 tire... so it would not be recommended to put them on an 8" wheel.
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1969 Chevelle
Old setup: Procharged/intercooled/EFI 353 SBC, TKO, ATS/SPC/Global West suspension, C6 brakes & hydroboost.
In progress: LS2, 3.0 Whipple, T56 Magnum, torque arm & watts link, Wilwood Aero6/4 brakes, Mk60 ABS, Vaporworx, floater 9" rear, etc.
Last edited by Blown353; 10-24-2007 at 10:29 PM.
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