I'll know pretty soon, as I have 150hp M4s on order. Should be here in a week or so.

What I hear is that an M4 WILL deliver more fuel, it just won't show up as HP on the dynojet. At least, with a wire tap box set on kill. You'll need some nitrous or water/meth to burn the last little bit of fuel.

Without a tapped wire, the M4 is within the pump's capacity, so you should get the full 150hp. At least, that's my theory.

jlh

 

do you want to sell your current injectors?

 

I think that the mach 6ers are rated for the 215-240 range on a stock VP44 pump. Just add lots of air. A heavy shot of NOS helps kills off those pesky poser viper owners. If thats not enough jam for ya, just add a swirt of methanol.