A. the gas rail also bolts into your intake manifold not into the block. and yes You should utilize the LS gas rail or maybe the b16a2 gasoline rail, whichever you like employing.ryukkid stated: they market obd2 to 0bd1 jumper harness for each the distributor as well as the ecu Click on to develop...Interchangeable Elements early b20a and b21a bloc