dj-fd3s

ok i just got a 93 rx7 the guy said it just needed a new rad. due to the old one being hit be a rock on the street. i got it towed home an i put gas in it when it was on the truck. i got a new godspeed rad. an installed it the car started an flooded out i replaced spark plugs. it started right up an smoked white smoke real real bad (did not smell like coolant more like bad gas) i drained the tank an the gas was yellow but did not smell like diesel. filled with good gas an it runs still smokes not as bad now. the cooling system still has air in it an my heat is cold. i put 15psi onto the cooling system an it held so i dont think its the coolant seals. any ideas?