Street Demon tuning experience

One trick is to leave the six crews out of the bottom while you're tuning and getting the jets correct...
I have 3 of these carbs in service now and a customer with a 400 Pontiac. He's happy..
I think the street demon comes with a one-off number 7 Spring in it that is green or something If I remember?..
the Springs I bought the summit brand Edelbrock Knock off Springs for 5 bucks a pack....
I put a 750 on my 408 in my power wagain and when I tried to follow the AF gauge. It ran like c*** but then when I followed how it idled and how it handled it ran perfect, or it runs perfect.
In my opinion the tuning kit is a colossal waste of money..
These carburetors are rich, you're probably just going to need 1 or 2 step leaner jets.. and as mentioned the primary jets are one-off and the secondaries are just typical. $6 holley jets. Spending $80, and I imagine it cost more for a bunch of jets half of which are to rich is a waist of $$$....
FYI the pump shot squirter are holley...