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Well this whole question was brought on becuase of the additive... We tried running a solid flat tappet with royal purple full synthetic and took some lobes off the cam . Should have known better. This car runs the 1/8 and we shift at 5500 and runs 7.20 consitantly or should I say ran... Its just a 440 that had a .590 purple shaft. Ran good and consistant had no complaints with performance. We dont really wanna turn that many Rs because we dont wanna spend the money to do so lol. So it sounds to me like unless we wanna turn mor RPM stick with the flat tappet and just keep the cam lube in stock.


Do you check for lifter rotation before you fire the motor? If any of them aren't rotating, put 500 grit sandpaper in the palm of your hand and rotate the base of the lifter in it till you can see that it is scuffed a bit. Test for rotation again. With the right oil, you should be fine.


Are you talkin about for engine break in? If you are thats the most pathetic part about our problem lol is this motor has been together for years we just didnt have any cam addative and decided to try and take a chance with royal purple with out the addative. If your not talking about break-in please elaborate im curious as to what you mean?