292 with a nice ticking sound

[wancosc356]

Hey guys. I have a 67 c10 but I am told the motor in it is a 60-66. It is the 292 inline 6. I installed HEI on it and set the timing at 8 points advanced. And adjusted the idle. It runs very smoothly and idles nice. However, when giving it gas I get a ticking noise from the engine. It sounds like the upper part of the engine. I assume I just need to tighten up the lifters??? Or adjust something else? Im pretty new to working on engine internals. Any and all help would be greatly appreciated. If you know what I should do could you please explain how to do it or point me in the direction of where to find out how to do it. Thanks
Michael