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I have a lq4 all new internals with stock pistons. 223 X 600 Cam 42 lbs injectors and long tubes, when I had the engine dyno tuned it had stock truck intake and tb . The tuner guy said it was being restricted by tb and intake. ....so I put a Holley high ram and a 92 my tb . Now I lost all my bottom end.
*****can a tune shop tune the bottom end back into it. If not what are
your recommendations
Last edited by Theduck; Apr 29, 2018 at 03:38 PM.
Reason: Misspelled
I have a lq4 all new internals with stock pistons. 223 X 600 Cam 42 lbs injectors and long tubes, when I had the engine dyno tuned it had stock truck intake and tb . The tuner guy said it was being restricted by tb and intake. ....so I put a Holley high ram and a 92 my tb . Now I lost all my bottom end.
*****can a tune shop tune the bottom end back into it. If not what ate your recommendations
Holley Hi-Ram killed the bottom end. A FAST manifold would save it and add to the top end. The truck intake is actually a good unit. What numbers did you get from the dyno?
Holley high ram and a 92mm 
