my sons '94 swapped LQ4/4l80e pretty much stock with just a 02 LS6 cam, no cats, CAI & tune put down 336/352 rear wheel 2nd gear pull with a 3.42 and heavy 20" wheels. being you have a LQ9 with a hotter cam and mods 400-420 rear wheel should be an honest number i think

BTW you might want to add injectors my sons setup is maxed out injector duty is at 94% fuel pressure is upper 50's psi

 

Here is my dyno numbers on my 03 hd1500

Build list:
Fresh LQ4
243 heads
Tsp double springs
Tsp hardened push rods
Tsp 212-218 .590 lift 112+2lsa cam
Arp rod bolts
ls7 lifters
F.A.S.T. Lsxrt 102 intake
Nick Williams 102 tb
dr performance x link
Afe Cold air intake
Pace setter long tubes
3" exhaust with xpipe
Msd wires
Dyno tuned by Andy Moye at Donihoos Performance

With an Lq9 and a bigger cam you might have those numbers you want.
I wanted as much power under the curve I could get without doing a stall on a budget, it is my tow rig. It runs really good, it isn't super fast but I have beat a couple mustangs and imports that pull up and think they can get around me.

Few build pics




Lsxrt, nick williams, afe



pace setter long tubes



Old and busted



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