Hi,just builg a new engine and was wondering what HP m i looking at?

B20 duct block with 85mm cp piston 11CR
Eagle con rod eagle 95 crank
b16 head with JUN3 cams,JUN valve spring and crower tt retainer
JUN ECU and Greddy E-manage
Edelbrock victor x intake manifold with edelbrock 65mm tb

Am sourcing around for a header was wondering if a side exit header would be good?

 

if it's not for street get side exit

 

Thanks,was looking at getting RMF

 

if its not for the street, why not higher compression, with an 85mm bore you can go higher in compression and still keep a relatively flat piston.

 

Its actually my daily drive,currently the engine is in a ek4 4 dr,weight of the car is about 2200kg,right now we are encoutering some prob.I'm using a spoon ecu and its suppose to rev pass 9k but right now it is being cut at 8k.anyone know the reason?could it be the injector?