Z1OwnersClub GB

I have got another head coming(cheers Jack) and I want to know what the general consensus is on modifying it. Do I go for big valves, is 1mm oversize worth it or bigger. Gas flow and twin plugs. Lumpy cams?
It already has a Wiseco 1170 pistons and 33mm Keihin carbs fitted, with a twin tap fuel tank in the pipe line.
I know it might cost abit, but I need to do some fiddling in the garage during the long winter nights and my wife although is very understanding won't let me have another bike, so the money has to go some where.

Cheers Rob

depends what yeh gonna use it for...........for road use i think everyone would say 1170 is big enough,leave it single plug and just freshen up the head

+1 Raf knows his onions

Just get the bike running spot on - check clearances, valve timing, ignition, power feed to coils (assume you're running Dyna coils), carbs set up right - get her dyno'd - and that'll make a difference

Guess they'd be Spanish Onions eh RAF ??
Piggy Peggy Piglet will never work that one out

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greg cope full tilt pro stock head