I want a responsive engine off boost hence the high comp route.
Just to note that Andy Nichols with his 800bhp fwd Rover is running high comp and 3 bar of boost and his car has the same torque as Rocket Ronnies Skyline. As proven on the dynopack at AET with Abbey Motorsport present.
I have had the car 3 years now and built it from scratch so its as set up as it can be. The best launch was a 1.7 sec 60 ft on street tyres that I use every day. I also drove the car to the event and home again. I might put some softer springs on the back for straight lining though in the future but thats all I can do apart from putting some huge Mickey Thompson drag tyres on it, which I don't fancy doing as its cheating IMO in a street legal class.
Once on the move it has plenty of traction so another 100 bhp should be fine.
Also the ST head is totally different and the cams are a different thickness on the bearing caps.
These heads are the future for Zetec turbo tuning. Massive flow potential from these.
They flow better in standard form than most big valve performance heads, (silver or black top).
They can flow more than a cossie head too