hey. I have a 05 crew cab GMC. need to know how much can u shot on a 5.3 with a good tune. takeing out 2 degrees out of timeing. and two step colder plugs.

mods. comp cam. rod,spring...long tubes. and air aid..

also... do u think nitrous will make more power than say a procharger or magna.

 

If you go with a wet Kit 150hp no problem 125hp dry. Nitrous will make more torque down low but it get its butt kicked higher in the rpm range. Its been a constant debate of which one is better. If you have a 4x4. Launching in 4wd on nitrous is hard to beat. Tons of torque will give you a hole shot then they will have to chase you down. Or you could do my favorite blower + nitrous =

 

wow. my nirous kit never ran out of power all the way to 6600 rpm's. it was an nx wety kit with a 150 to 175 shot. on a 150 to 175 shot it is going to be a violent shot unless a controller is used. it is also going to wear some things out as well as maybe break a few things. if you are set on a 150 shot or above i suggest tr6 plugs as well as a fuel pressure gauge.

 

Mine always pulled up top too but blowers make better power up in the rpm range. And as one nitrous expert said take two engine making the same power. One with nitrous and the ether with a blower. And the blower will win every time because a blower will have a constant push down on the piston. While nitrous is more of a explosion at the top of the stroke. There is more then one person on hear spray a 150hp shot. But I will say you'll need some trany up grades.

P.S. I ran a 200hp shot on my truck for 2 years but is a big block.

 

yay a blower motor may make more power up top. but he will be playing catch up to me afteri launch. and i can have 300hp and do it right for 1000 and the blower with less power is going to cost you 5000.