get rid of the injectors.....you should be around 370rwhp with a good tune. with a stock LS1 and i tuned it and got 333rwhp 348rwtq out of it...with a LQ9 and that setup i would expect what i said. again its in the tune and ditch those injectors

do you have HPtuners? i could probably do a tune for you if needed...im getting handy with my software

 

42lb Svo injectors,had to splice on car style pigtails.

 

I'm gonna hook up with Gomer next week and work out the tune.Wouldnt you think this setup would break the stock tires loose in 3rd? It wont right now.

 

my lq4 with ported ls1 heads and ls1 intake with my cam in sig with long tube headers made 320rwhp and 325 rwtq on a mustang dyno in a second gear pull...you on a mustang dyno i say prolly around 345-365 and on a dyno jet you should make around 365-380

 

should but if tune is off then it wont do ****.. and those injectors are way to large i dont care what anyone says.

i put together a 11.1 6.0 with 243 heads, ls6 intake and trex cam. with 30* of timing so far i only get 80% duty cycle on SVO 30s

yoru setup is tame compared to that one and probably only using 50% of you injectors....i could do a dry shot on that setup and still nto be in the danger zone of the 30s

my 408 will have SV0 42s and will need them your 6.0 even on spray wotn need them