HEI distributor Q's

[FATNLO]

Is it possible to remove the vacume advance from a HEI distributor and change it to a mechanical advance?

What are the pros and cons of eash type of advance

[BigRedTrucker]

The vacuum advancer is setup more for economy street use and properly dialed in should be great for the strip too. I think mechanical is more consistent which is what you may be looking for on the dragstrip (unless you have hills and other inconsistencies on the dragstrip).

I have no idea about conversion to and fro, however.