cast iron plugs for exhaust

[boatermike]

edelbrock cast iron plugs look good to me

[TIMINATOR]

Better than nothing, best gains will be with Bassetts, probably won't see anything with logs. BUT THEY WON'T HURT!!!!! With Bassetts, we fill the entire crossover in the head with aluminum, and match the shape to the other ports. Also, if the bridge between the center two cylinders doesn't come out even with the flange, the inner 4 cylinders will contribute little to the headers scavenging effect, leaving HP on the table. This stuff is as important as valve size and porting. We do a bunch of them. TIMINATOR