I'll try it in this Thread maybe people will be more willing since i have a Classic.
i put an 05 LQ4 in my 73.. and was wondering if anyone knows if it has a fuelcutoff or a rev-limiter. when im gettin on it in a corner in first the tires will spin up and when im about to hit to limiter(i think..No tach yet) it feels like it falls on its face.. seems like a fuel cutoff to me... Any help would be great.. Thanks..

 

What fuel tank did you use? Could be low enough on fuel that it is splashing away from the pick up. My 79 does that under 1/4 tank.

 

Yea i was thinkin that but it does it with almost a full tank.. dont think its surging for fuel.. But nething is possible.. in the future i would like to add a surge can just to know its got fuel.. its a new rear mount tank for a 67-72 truck/blazer.. we had to do some fab to get it up there. check the link.. u can see my fuel tank behind the exhaust

https://www.performancetrucks.net/fo...=1#post4091969

 

My thoughts

Also if you ran a stock PCM in it, it should be about 5700 or close to it...

 

Really!! i thought they all cut off at 6200.. So with some tuning i guess i could fix that if thats the case.