blinx, do you still keep the VTEC on or u turn it off and let only the turbocharged do the revving?
Here's some tips i think may proof useful when it comes to turbocharging a Honda
Don't use the original piston of B16B, B16B's piston is designed for high-revving for NA, so it has a higher compression angle(the tip of the piston is higher than any B-series piston), so typically even if u added a much taller gasket it still wont do much help, the compression rate will still be too high.
Now, for the F20C's high compression turbocharging, its not impossible, but impossible for for the life of that engine, let it run for more 1 or 2 year and i dare say unrepairable problem will come out, but why they still do it? Cause F20C's block is much more better than those of B-series and its design for over-thousand revving so the rigidity of the block is not questionable thereby high-compression charging do make sense.
Back to the B-series, since B16B's piston are too high compression, its best you use a flat-top(if you want to retain some compression rate) or those from aftermarket thats been forged like Crowers or Eagles(those from europe) and if you consider Jap, TopFuel is the answer, these guy is the leading VTEC Turbo specialist in, if not the whole world, Japan. They've once construct a B16B turbo, by boring it to a 1.8, with compression rate of 8.5 and 1.7bar of boost, thus strengthening the whole inside of the engine, leaving only the body of the engine the only part original. the result? 185bhp 8500rpm 16.3kgm 7500rpm =- 506hp/8630rpm、 45.7kgm/7420rpm....sounds fair enough?
AND one more thing, you said that you like to keep everything inside the B16B original, that is complete wrong, as you need to do strengthen the valve retainer, spring and others so that it can withstand the force of the turbo, so basically what you did in the first place will work but wont work for LONG, its no point getting to run a B16B turbo for a day and save it in the garage for 1 year.............
looking forward to your beauty blinx, seriously, i'm also kinda into turbochargin a B16B other than B16A / B18C haha cuz is TYPE-R!!!!