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Am currenting running the Turbo T/A heads on what I believe is a GN 3.8 block..Having a big problem with valvetrain noise.. Am looking at Smith Brothers adjustable pushrods to get away from shims.. Flat tappen camshaft.. So I am asking for specs on pushrods and if anyone has had luck with them.. As to the second question as the rod length, have a fresh block to be picked up this week and maybe considering finishing this off for a replacement for this car.. Must use Turbo t/a heads for clearance issues and stock valve covers.. Setup is in 93 Firebird.. I think thats all.. Any answers and questions would be appreciated..
 
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