I need a bit more bhp help
 

Hi guys first off I'm just going to say I dont have a standard scoob and want 1million bhp for £30 lol this is a a serious post looking for some proper help so please read threw and any help will be appreciated on squeezing more bhp out of it :-)

Right I have a turbo 2000 with a ej20 engine with the following mods so far
Forged pistons,Manley forged rods , acl race bearings 880cc injectors, scar fpr, walbro 255 fuel pump, lightened flywheel, lightened pulleys, td06 20g turbo, FMIC, 2.5 inch tubular stainless steel manifolds, 3 bar map sensor, 3.5 inch decat to 3 inch exhaust, simtek ecu , center feed fuel rail for equal distribution , k & n air filter, 12mm oil pump ,phenolic thermal manifold spacers 8mm I think, and a 6 paddle clutch, short shift,forged 5 speed gear box and LSD rear diff , standard cams and standard heads, it run a 421.6 bhp on the dyno with open deck blocks and 0.6mm head gasket at 18psi , anyway the block twisted so currently rebuilding with closed deck blocks which have all been rehomed to standard 92mm bore I believe and it's due to go back on the dyno next month

I want more power and I'm after help on what small bits I could do y the blocks apart to get the most out my setup ,I don't want to stroker it just yet all tho I have thought about it but that's another £1200 lol

What size head gasket would you recommend for more boost I was thinking the 1.6mm stainless steal 1s but I'm not 100% was thinking about cams too but I dnt realy Wana chuck another 2k at it with the head gaskets n dyno Ect it's allready going rob me of another £1000 lol so please any advice would be realy appreciated