KA24DE problem...

[27RB240]

I've been having some problems recently...The car starts fine and everything..but it sputters at full throttle, like it has a loss in power..I know 240s arent FAST FAST but I know how it should feel and its not making the power it should..any advice/info??? My friend and I thought about trying seafoam or it could be timing; sometimes at idle it has a little tick that it makes until its revved up....(btw this car has emissions taken off of it)

[27RB240]

bumpp

[sideways24d]

Does it always tick at idle? It goes away when revved up? Timing chain could be old and stretched, look into replacing the chain, guides, sprockets, etc. but ofcourse check the timing before you tear into it. You can always tune the car up to eliminate the possibilities (ie fuel filter) biggest cause of lost power