Sorry but more questions, I like to understand the reasoning behind certain things unfortunately before committing the cash. Anyway got a few more questions regarding a YB build that will go to 5/600 bhp depending on the answers.

Best Bore and Stroke combination - also what is the maximum piston speed and at what rpm ?
Recommended suppliers/manufacturers of crank,rods & pistons
Why nikisil steel liners - why not run with bare liners ?
Maximum boost and why and at what rpm?
Suggested Cam profiles - what duration ? Lift ? Solid or Hydraulic?
Suggested Valve Spring pressure's - installed and full lift ?
Oil pump flow rate increase for the higher horsepower - if necessary and modifications required for wrc spray jets (what effect does fitting these have on oil flows/pressure?
Other than dry sump any other means of driving the oil pump in view of removing the distributor.
Suggested flywheel weight and clutch type for this range of power?

Lots of questions I know but I guess there isn't one correct answer

 

are u the one who posted before who is running sm4?

 

Yes, thanks for your previous advice (I dropped mark an e-mail to which he replied), just interested in the answers to understand the approach and reasoning for some of the modifications talked about (there seems to be quite a few ways to skin this cat).

 

yeah i guess everyone has there own way of doing it all depends on who your going to use to set it up when your finished

 

Problem solved, going to buy dave's motor.

 

Oh yes, what a engine