New engine gremlins - frustrating

Engine was fairly warmed up by the mechanic prior to my arrival for the 5 mile test drive, but all points valid.

If timing is 16-18* is set and with increase to .037 nozzle discharge size. Would an increase in next size in jet?

Yes, it is an air gap intake, but this car is a weekend summer driver only.

Vacuum gauge is a good idea to see what happens.

Interest tidbit on that '71 318 Rochester 2bbl issue lol

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