Neat little hp/tq increase at less than $1.00 cost!
Just did this on my truck and will advance timing a couple degrees to use it to max benefit... Remove (or cut) the heater lines into and from the intake, so it runs at ambient instead of whatever temp your vehicle is running, REALLY noticeable on cool crisp days (or cold even better)! I cut the small 90 degree one from t'stat first, then the one up from the heater into cab fitting, plugged both, and voila, def a bit more pep after warming the fluids up...:)! Good for bang/buck ratio!
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Throttle Body Thread Resurrection
Attachment 6974
BEFORE
Attachment 6975
AFTER
So after digging this up from the archives, I decided to try it. I wanted to keep function as close to OE as possible, and gratefully there was enough hose to just bypass the throttle body with no other mod needed. I only had to disconnect the intake manifold support and run the hose under it. Then I topped off the coolant and took a test drive. Haven't adjusted timing or anything, but so far so good - started, ran, and Temp Needle was on point. That's a good start, and we'll go from there.