the engine in my 80 olds was a 307 and it was changed to a 350 and i found out the engine or just the intake is an a5? out of an 88-95 i think. would an intake off of a 70 fit the block and how do i find out the year of the block? the alternator is on the drivers side and the ac and the air pump is on the passenger side if that helps. i really need someone to answer so i can get an intake at pulland save i am the third owner all all this was done before i got it. the electrical was already messed up as well but the price was right, free.