How much hp will this increase?
 

All the stuff on my sig plus 370 injectors and a 16cm housing. I was wondering how much increase I can expect from doing the injector swap. I am trying to get the beast deep into the 14s.

I know people have swapped to 370s before. Basically is it going to be a big increase when I get all the tuning an such down?

370's will be exceptional, but you'll need 191 delivery valves in your injection pump, and some timing advance.

I know about the timming advance but do I have to run the delivery valves?

No-but then those injectors couldn't do what they're supposed to.

Ok, well I guess I should do everything at the same time. Thanks

If you're looking for a HP # then figure about 100. 14's will be tough to get running 38's. Should be in the mid to high 15's with all that, but it's just my guess.

Well the truck runs low 15s maybe high 14s right now. It ran 16.01 with 3.55s in 110 heat and I have done more junk to it also.