Drop a Maggie in the valley.

 

I have noticed black around some couplings but no audible leaks and all are after the x pipe at least 2-3ft behind 02s and wideband. I was under the impression that 12:1 under WOT was ok

 

seriously considered But damn $$$$ there's many other thing that need finished first wheels front end parts brake upgrade seat covers full 3" exhaust ect + I'm working on a "budget" 5.3 turbo s10

 

12.0 to 12.5 AFR is just fine for a NA engine.

 

Good job on the build for a high schooler!

I'd suggest the 1st gear in the 4l80 is hurting you but also want to know how you adjusted lifter preload? If not done correctly it might be what's h9lding you back. 11to1 compression and a decent stall should be a beast down low.
I built a similiar setup for my H2 and it would turn all 4 tires. I used a TBSS I6 stall and had zero issues getting out of the hole but I also had a 4l60e.

Best of luck

Tim

 

thanks! Also non adjustable valve stem height was sat at 2" was set tdc fireing 1 1/2 turns into the lifter. Would love to hear more about your build. Also kind feels like I'm hauling a big trailer all the time

 

I'm far from the expert here but that doesn't sound like you took any consideration for push rod length and that could be your issue. I had a good friend and engine builder coach me on mine. I used a BTR cam kit, with supposedly the right length push rods but after checking with a dial gauge, we needed longer ones. Maybe some others will chime in on this.

Tim

 

It changes for every combo. I am not totally certain how the OP did his checks, but I used the Comp Cams tools and measured the tool length end to end with calipers, added .075" and rolled with it

Manton pushrods aint cheap, but my method got it right. But not the second time, I cut the heads .035 and just bought rods closest to .035 shorter than I had Manton build me

Basically, there are probably 14 ways to choke this chicken

 

heads were cut .030 but the cams only .523 lift on a stock base circle i used a stock length pushrod rocker valve tip patterned just fine also there was plenty of travel till the lifter bottomed out. I was going to shim it up under the pedestal 1 turn would recover faster from being over revved but was gonna have to order shim stock. Turn and a half is pretty typical for a stock LS gotta consider how fine the thread is on the rocker bolts 1/2 turn sbc > 1/2 turn LS

 

It might be perfect the way you did it. Just throwing stuff out there. My cam was only .553 and if I recall my guy went with 7.465 pushrods. He spent a ton of time on the preload and the results were a silent valve train.

My build was 11 to 1, 243 heads with Ls6 springs, the BTR stage 2 low lift cam, TBSS intake with flex fuel injectors and a stock gold blade throttle body. You don't really want to spin the tires at all in a AWD but given the right surface it would come unglued and on a wet road it would spin them while rolling.

Tim