I recently bought a 78 spider (I posted some electrical issues that you guys helped me with) and have come across a odd issue. every once and a while usually after slowing down and then accelerating I have a lot of blue smoke as oil much like oil seals but most of the time there is nothing. The exhaust pipe is clean I have not driven it a lot but the oil is clean I have tried to get it to smoke by revving the engine while stopped but to no avail. The engine runs fine no smoke at all at idle. The engine has been converted to webers an is suppose to have been overhauled but there was no paperwork. I did notes that there is some oil on the exhaust manifold outside I haven’t checked the compression but there is no oil in the coolant. Usually when I have had bad rings the exhaust shows some smoke all the time and when the valve guides leak you have it puff at shifts or when cold so I am confused.