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Single feed and dual pulse. Only ever ran dual feed on 50’s on my 8mm dry piped race boats. I like to use the petcock so I keep it to single feed with normal builds.

On that setup I ran dual because each carb had a pump. Yes you could easily convert to one using oem backs

A little daylight is normal. Suck on them and they should close. They are also molded (layered) with a curve and coated. Maybe for last ditch hours it’s ok to flip but you may see daylight on the sides which isn’t good and won’t seal as well

There was brand new 2019-2020 SJ take off poles on eBay for 200 I think and 50 for pad. Note steering and spring was included. Then buy a bracket (watcon) for that pole and you have a nice new setup way better

Cast I hope??

68 is the 61x/62t stock stroke

6460 was best I saw and if I recall it was April/March. 50f water or so and 60-70 air temp I would assume 6350-6450 norm depending on sea level and weather. Oh also BMI will affect rpm more than weather. Lol.

Mine 14’ 100% out of the crate full tank gas NO mods at all 6460 in Michigan.

That looks like ADA dome. That must be a newer Greater head after the racing head. Not a traditional during racing days pretty sure ada made that as private label for greater this Ada domes

Pop a dome out - so we can see side and top If it’s the traditional greater dome same as about 15 other billet heads. Protec still sells them. Cool, protec, Blowsion, JSU, kommander, watcon,UMI,speedwerx,east coast, Rius and a few others use same dome. note: NOT Riva or ADA

Tell me more. Zeel dying? Wonder how many have failed?

Lol. Pretty quick?? Lol

Oh I missed the group this post is in. “Blaster”

There are at least a dozen dry pipes. Which one? Everyone fits except for some need hood clearance. Some people like to clear the back a touch to wash removable but they all fit without issues if done right.

I assume you own a tach?

Gosh time flies. Almost 20 years ago and it seems like yesterday.

It could but it would be challenging. Airway needs to see crankcase pressures on crank side. Not much room around Reed cage at the manifold to case interface. That’s why nobody has ever done it.

make it so you use the same Yamaha oem bolts. (keep thickness same at same spots)

That hole transfers through to the other side of the reed cage. See yellow circle

Wrong side - pulse needs to be between Reed flange and case area.