right finished my efi conversion, starts on the key, but when i drive up the road its as flat as anything, i could ride a bike faster, any ideas?

these r the only things i havnt done at the mo, i got the iscv to atmosphere instead of going to the crossover pipe

ive got the original brake servo pipe cut and joined to a take off on the inlet instead of the proper push type efi servo pipe

would these cause this problem^?

if i blank the pipe on the iscv off, it cuts out
if i disconect the iscv it also cuts out out

its not chipped yet, so standard boost with a bleed valve thats wound all the way in

the idle is very low too, but the idle screw is wound out as far as possible

when driving its like the exhaust is blocked, (was fine on mfi)
when i rev it on idle i get chatter so turbo must be spinning up

any help would be grateful chaps