| if you take the DPF off the LMM you have a high output version of the LBZ but bothem dyno with in 20RWHP of each other..if you want fast with the stock fuel system and turbo we have LBZ's and LMM's running mid 12's on all fuel and with some drugs a 12 flat in the quarter..can't do that with the LB7 or LLY but if you want higher HP the LB7 holds it better then th LBZ since they have problems with pistons going bad..all in all i would have a 3500HD GMC RC LB SRW over the classic.
__________________ James 
TyreBoyz Pulling Team
Pulling Truck called Late Nights
Puller/DD=04 LLY Reg Cab 2500HD,EFILive'd,Built Tranny and a fe fuel upgrades!
Business Truck
06 LBZ 2500 CC SB SRW,EFILive'd and a Built Tranny
DD/Beat Around
03 5.3L 1500 EC SB,Hypertech,Upgraded Tranny,Exhaust and CAI
Economy Saver
02 VW Jetta TDI,Stock for now but looking at a Chip,Nozzles and CAI!
tricycles = teaching childern from a early age that front wheel drive sucks  |