[ArizonaGT]

That 6-32 Allen set screw (just forward of the primary idle speed screw) is a throttle stop. At WOT the linkage arm will bottom out on it, you can raise or lower it to get the butterflies vertical.

75/82 is one helluva lot of jet for 302 cubic inches. What altitude are you at?

 

[ArizonaGT]

It’s missing the nut that retains the linkage head to the primary shaft.

I also have set my primaries so a small square is visible of the transfer slot, however, the spring that my accelerator pump cam sits in front of prevents my throttle from closing all the way so the amount of transfer slot exposed is more then I would like right now

Are you talking about this?

 

[ArizonaGT]

On setting the secondary throttle plates: 1/8-1/4 turn from being completely shut. Hopefully there will be little-to-no secondary transition slot exposed, which is what you’ll want. But you don’t want the plates bound in the bores either, so you have to open them a little bit.

 

[ArizonaGT]

ill send a picture when im back at my house

Excellent 👍
I‘ll look up Slayer calibration specs, BRB

edit: is this it?

Quick Fuel SL-750-VS Slayer Series Carburetor 750CFM VS

Slayer Series street carburetors are designed with many of the same innovations and features that are built into all QFT™ race-winning carburetors, including changeable air bleeds and power valve channel restrictions. It's designed with a secondary metering plate with changeable jets, and...

www.holley.com

 

[ArizonaGT]

On transfer slot exposure: primary side, roughly a ‘square‘ or short/stubby rectangle is ideal. If you have little-to-no exposure on the secondary side, that’s good. Provided that the secondary plates are not shut completely and bound up in the bores.

Your pic with the red circle is how you ‘set’ the secondary side. That’s the screw you’ll want to back out (down) until the secondary plates ~just~ close completely, then give it 1/8-1/4 turn so there is no bind.

 

[ArizonaGT]

Primary jets 68-70, put a stiff-ish vacuum spring in it, and it’ll run like a scaled dog on a 302 😉

 

[ArizonaGT]

edited… I don’t need to make this any more complex than it already is 🤪 We’ll cross that bridge if we come to it

 

[ArizonaGT]

Purple is a good spring tension for that carb/motor combo. I’d run it as-is for a baseline and go from there. But yes, it might want to be slowed down a little but you won’t know until you test. Resist the urge to change too much all at once… don’t ask me how I know 🤪

 

[ArizonaGT]

Just a comment on YouTube videos: there is some good information out there, but there’s also a lot of crap. You may have to sift through the crap.

I‘d browse a few different channels and compare information… if you get the same or similar info from multiple sources, chances are it’s reasonably solid. But if one guy claims to have solved the mystery of carburetor tuning all by himself, I’d be speculative.