i just bought an XE 218/230 on 114 lsa its rated at .495 / .510 on 1.5 rrs...my previous mods i made 291rwhp/324rwtq..then added 1.6 rrs and ported the heads and only jumped to 295rwhp..im guessing i didnt have the velocity neccessary for the heads..what kind of numbers can i expect to put down after i swap in this cam with mods in sig

 

what was your previous combo?

 

I'd put the 1.6s with the cam. It should give you a nice improvement, I'd say a good 20 to the wheels if the heads arent screwed, did you have them flowed and did they stick a velocity probe inthere or are you just guessing about that?

What mods did you do to the heads?

 

the heads are good..and the 1.6s are already installed..bowl has been cleaned up, ports basically matched up..needed improvement on the exhaust side

 

i was thinking more along the lines of 340rwhp..my previous combo is just bolt ons and ported heads

 

Not knowing what the heads flow is really a factor to the power guessing.

But like I said I would at least expect 20 rwhp from it.