For seafoam use the vacuum line that goes from diverter valves into intake manifold.
U keep revving engine around 2000rpm while someone else holds the liquid and hose in a cup. I used about 3/4 of seafoam bottle. The rest in gas tank. Then drove around for a bit. Car never misfired since then
JB4 cp-e IC AMS exhaust BMS DCI AR DP's METH
19" VMR VB3 Stoptech BBK TC KLINE VORSHLAG