Usual HP gains witha #4 lower?

[Ronnie]

What have you guys been dynoing with your port job and L's that have either a #4 or #6 lower and the whole C&L and Throttle Body set up?

 

[raenmaker]

......

i would like to know also i was just at your page and thats a hell of a deal on the sc,tb and pl porting and do you have a core deal for no down time ?

 

[Ronnie]

Does he check his NLOC boards. I know he does on SVT Performance.

 

[Stiegemeier]

What have you guys been dynoing with your port job and L's that have either a #4 or #6 lower and the whole C&L and Throttle Body set up?

Tuned correctly should make 400- 425 rwhp. depending on mods and tunes.
We recommend 4#Lower