Just thought I would post pictures to show the diff

 

Very cool for ppl that have to change & can see what the difference is.
Personally I like the looks of the old spider, looks arachnid like lol.
But you can see the power lines for the poppit valves heading under what looks like (unheated) heat shrink tubing on the new style.

 

changed mine and i get a better throttle response... my old were clogged bad cause poor maintanence on behalf of orig owner

 

Got mine all apart doing the samething...plus the lifters.