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What should I gap my plugs at in a 520 with Indy ez heads and 10-6-1 compression. Thanks Vern

So I have a 440 BB with roller cam. I have never run a roller cam before so I’m wondering what the best oil for that would be. Someone told me not to run anything with zinc in it. Not sure I buy that.

On the Indy ez heads do you still need to use thread sealer for the header bolts. Or is that just the stock cast iron heads. Thanks Vern

just put a 440 in my 71 Dart with a champion 4 core radiator. What hoses do I need for it. Any help will be greatly appreciated . Thanks Vern

Does anyone make the big block dart exhaust manifolds aftermarket.