Whew finally finished up the head install today. It actually took me longer than I thought it would of, but I purposely labeled every last hose wire ect. and bagged and labeled all the nuts and bolts. What do you know, I didn't even have any nuts and bolts left over.:h .
The truck started and fired the first crank, settled and idled fine, then I pulled the spout connector and set the timing.
The steeda adjustable shaft rockers are quiet as a church mouse, the motor sounds as before. Idle vacuum is still about 19-20", and no check engine codes. Test drive: Noticed right away that the truck has slightly less off idle throttle response, probably from the increase in intake runner volume, ie 180CC vs 160CC.
But I'm really glad about this because it was always touchy on part throttle anyway, so this is a change for the better. I drove around a bit before standing on it just to make sure as was well.
Made a couple onramp runs and can tell you this thing pulls like it never has. The mid and top end power is there now all the way to 5500 shift. My boost is down to about 5 1/2to 6 lbs now at shift, down from about 8lbs. Fuel pressure is down from 92lbs to about 80lbs.
My next step is to get it on the dyno with a wide band to check the airfuel mixture to make sure all is well, but didnt get any detonation with the conservative timing I was running.
THis truck is definately a 12 second truck now, but won't buy the sticker until it proves it on the opener on the 30th of March.
BTW, I think I'm at the limits of my poor 19lb injectors.
I'm pooped, just came back from a buddies , had to lash his valves on his brand X.
Later all,
Steve
I wish I could change setups that often
