Ticking noise, 383, can't locate the source

matthon said
So, lack of SPACE could mean what, the sound is from the valve opening too much?

I'm somewhere between completely frustrated, see below, and interested in what's behind the suggestions, just want to learn something dammit.

Fun fact, late last night my in tank pump decided to go from a regulated 58psi, holding there after priming, to 100psi when primed, making a horrible screeching sound, then back to 0, then banging off 95 when running.
After hours today, and not wanting to drop the tank, I think I figured it out, something must have been stuck in the forward throttle body.
Click to expand...

Well no. The valve has to open however far the lobe tells it to. The noise would be coming from the retainer hitting the guide. In other words, to little machined space between the retainer and guide......which is very seriously doubt is the case with aftermarket aluminum heads. But since we're runnin outta things to check..........