What would I need for around a 10 or 11 horsepower clone, e.g. compression, lift and duration, timing, etc? This will be on gas up to 93 octane. I want to put this together myself without any high dollar parts. So far what I have to work with is a cam (origin unknown) with .275 lift, billet rod and flywheel, 14cc head, Holy Moses carb, 3 stage header, (1) 1.3 ratio rocker arm, and some assorted springs up to 18lb. I'm thinking this should be easy and maybe with the stuff I have now. Some of you may want to know that this will be used on a 1/2 mile, very tight sprint track, and I really don't want to buzz it past 6200 rpm.