We don't use the Steeda back plug anymore. We use the jack shaft that bolts into the back of the manifold. We cut the jack shaft that used to hold the butterflies off right where it starts, and bolt in the "factory plug" we just made. I may take some pictures, if someone doesn't beat me to it. If you want to know if they're leaking, just put your finger back there, it'll damn near suck it into the back of the motor.
Tillman Speed Inc.
Custom Tuning | In-House Dynojet 224xLC
3344 Market Street • Suite C • Aston, PA 19014
Sales: (610)497-5776 or 497-3736
Out-of-State Sales: (610)497-3711
Service / Dyno: (610)497-9683
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