legacycentral bbs

So I have a 93 legacy turbo ej22. I just did timing belt head gaskets oil pump,intake gaskets,plugs, wires, battery,rad., ect.ect.ect. It starts and runs just fine. Right when I start it I get a little white smoke. When I drive it around the parking lot it smokes like a siv.? It smells a little like fuel. It does not smell like coolant or oil, and there is not even a hind of blue smoke. The car did not smoke at all before the work was done. I read it could be a bad ecu ground,or cam sensor. Does that sound like it could be my issue?
Thank you in advance!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

White smoke is almost always coolant. Usually entering the system through the head gasket. Did you replace that during your overhaul?

Yes I replaced the head gaskets.

Did you replace the head studs when you did the gaskets? White smoke is burning coolant 95% of the time. Replace the gaskets and head studs with parts from Subaru and make sure the head studs are torqued correctly. Also check to see if there's a crack in one of the heads.