Agree single cam with the right FMU,Tuning,tune-up,oilchange,and a wet kit, can run easy 75 shot, i did on my d16y8 for a long time as well, no problems, if you want to fix that backfire at 100 shot, add more fuel an retard timeing 6 degrees and you be fine, 255 walbro fuel , summit racing new 140 and a vortec 12:1 ratio FMU 160 new and will do the job good, by the way if you want a turbo setup I got a complete kit for 1800 OBO forsale let me know thanks Joshua