tach drive distributor

[my74ls4]

Is there a tach drive distributor that will work with the pro flo 4 system on a BBC Chevy?

[2700 Cast]

Unfortunately, we do not offer that option.

Maybe, you can look into this : https://www.corvettecentral.com/c3-6...version-391000

[my74ls4]

Would not look forward to removing the dash to install that option. Wondering why the Mallory #6148201 would not work. It is currently on a pro flo 1 setup. What is the difference? Thanks

[2700 Cast]

PF1 distributors dont work with PF4 Electronics.

Mallory units are discontinued & any old stock , probably are just waiting for the hall effect sensor to fail.