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I have a 68 Imperial that has the original unmolested 440 that is bone stock & as far as I can tell has never opened up. That I am putting a Holley sniper 2 on. What's the deal with lead substitute is it needed for this motor or is there something else that I should run in it or just filler up...

what's everyone's opinion on engine oil for a 68 imperial with a 440. I am going to put in a 160 or 180 thermostat in it and it is due for an oil change just curious what the best oil for these. Should I go with 10-30, 10-40 or like a 15-40 diesel oil that has all the extra vitamins & minerals...

I am going to put a holley or fitech EFI on my 68 Imperial. From what I can find an inline fuel pump or a surge tank are my only options. I wanted to do an In tank retro fit module but there is not room to install one in the top of the tank unless I do some goofy stuff to drop the tank lower...

I am going to do a 440 source 512 stroker in my 68 Imperial. When I called them and told them my goals he said I should do roller rockers but said I would have fitment issues using my stock valve covers and would need to do some grinding on the rocker arms to get them to clear. Does anyone know...

I have a 68 Imperial Crown with the 350 HP 440 the factory service manual says it should have A holley R3918A which i believe is a version of the 4160 4 barrel carb i have never really paid much attention to the carb as i havent needed to service it. Well it has been sitting about 10 yrs or so...