[mrmustang]

Both states have their bureaucratic paperwork hoops to jump through. Since you are already using a vintage block, it's really a 50/50 toss up. My advice if you are planning the move to CA now is to request the paperwork from the CA DMV and go that route, as California has shown that they rarely accept out of state titles on face value anyway. The thought behind this one is why go through it twice when one time will do.

Bill S.

PS: Special construction vs SB100, SB100 is for any vehicle that does not currently meet California's emissions guidelines, while special construction is for vehicles like yours that are home built.