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gregbr · 06-26-2009, 10:35 PM

Thanks for the input! I rebuilt the original dizzy, did not change anything on the springs & weights. I have not had it curved to the engine. My 67 4WD has a th350 & 3.73 and runs pretty good on 33" tires, That's why I thought the 3.42 would be better on the 402 2WD. I will adjust the timing this weekend and see what happens.

06-26-2009, 10:35 PM	#11
gregbr Senoir Member Join Date: Mar 2002 Location: Rock Hill, SC USA Posts: 1,214	Re: What gear to use with the 402/th400?? Thanks for the input! I rebuilt the original dizzy, did not change anything on the springs & weights. I have not had it curved to the engine. My 67 4WD has a th350 & 3.73 and runs pretty good on 33" tires, That's why I thought the 3.42 would be better on the 402 2WD. I will adjust the timing this weekend and see what happens. __________________ 67 Chevy, Small back glass, Factory 4WD, Factory Shortbed, Factory V8, Lifted 4" 70 GMC Sierra Grande, Factory Shortbed, Factory 402/400 turbo, Super Custom Interior. Numbers matching with SPID & Build Sheet. 68K Original Miles. Restored 2010 70 GMC Restoration Pictures http://67-72chevytrucks.com/gallery/...00&ppuser=4424