> Buddy Shirey Wrote:
> -------------------------------------------------------
>
> Current jets are 90 main 43 idle and needle at richest position
>
..........
> I just went to a 90 and now it's topping out closer to 370. Still too
> hot for my liking considering my cylinder is made of aluminum. My setup
> before was never getting above 300 but I've changed a lot of things
> since then.
>
> I've got a bit of a bog at 2/3 throttle but I'll probably get that
> worked out playing with the needle once I've found my main jet.
>
> Temps are definitely dropping immediately while I'm at idle. So I'm
> pretty sure I'm good there.
>
> So who's got an idea of where to go from here.
>
> It's 4 stroking a little at WOT so I'm going to try an 88 main next and
> see where that gets me.
My $0.02, if I was running with that data I’d drop the needle back to center position and upjet a hair rather than down jetting.
Everybody always says 85-90 jet for PHBGs on mildly built 70s but at sea level that’s always left me on the lean side.