hey guys, I'm pretty new to rollaclub, i just got myself a ke70 corolla and I'm lovin it, but i want to get a bit more power out of it without doing an engine conversion, so far I'm getting some 10:1 compression pistons, 277 degree cam, twin barrel webber carby and some extractors and exhaust system, but someone suggested to me to get a 3k bigport head and shave it down a bit, but i don't really know much about it, just wandering if anyone else here has done it? and if so how much can i shave off? and basically i want to get as much power as i can out of the 4k without turboing it so any other suggestions on how to make it faster would be appreciated, and also i havent bought any of this stuff yet and am still looking for it, so if anyone has any and wants to sell i may be interested, cheers.