To get to 200bhp you'll probably need some porting to the head. I would give some consideration to a Scholar Evo block, either 1800 or, better still, 1900. This will ensure perfect liner standoff.
My engine is:
1900 Scholar block with Pistal forged pistons
VVC head (same valve sizes as MS2) converted to solid cams and fully ported by DVA
BP285H cams with Piper verniers
Jenvey DTHTBs (42mm I think) ports matched to the head
Caterham 4-2-1 exhaust
Emerald ECU
All that lot produces 226bhp @7800rpm
It will rev higher. I am running a standard crank and single tang rods.
Yellow SL #32 - member of Drowned Rat Racing
Edited by - Shaun_E on 9 Feb 2009 12:09:53