i need help w/duster engine

God.... you guys are so negative...??

actually they moved the guide up so less of it would be in the port..
this allows more air to flow and keeps it off the bowl roof
and still ...keeps the guide length to support the valve
we figured this out..when i was considering what heads to put on my
engine.
you just need to make room on top of the guide for clearence.
thats not stupid...just fixed an old issue ...its evolution....
I am no Genius..My Grandfather builds offshore boat race engines
and my Father is a Hydralic/fluid Engineer..and ive been around this stuff my hole life...My brother just graduated from MMI...
most all of this stuff is Math...so I understand it..its math... dont know what else to say.
My brother tells me to make sure this is just a hobby..not a carreer...but so far its fun...
there is alot i have no clue about..
i cant get a carburator to work right for anything?
and i hate the smell of gear fluid..

i am not in a hurry (someone stated that) i just want to stay straight forward

got to go.. Orthodontist app...