A-11 cam vs. A-12
I have been researching the best camshaft for my modified GY6 150cc Crossfire 150R. Since it is modified with a 62mm cylinder, large valve head and a 8mm stroker crank with a 30mm carb and it is mainly ridden in flat sandy locations, I am trying to decide between a A-11 and A-12 cam. Some forums state the A-11 cam creates clearance issues on some engines. It appears that it has decent low end and plenty of midrange. The large displacement should offset some low end losses. The A-12 is a low end with some mid range (some say it is a rockcrawler cam). I saw that on some forums that a 8mm stroker should not rev to high, so that is also a concern. Any input would be greatly appreciated. 
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Tomberlin Crossfire 150R
62mm Big bore and Large Valve cylinder Head
MRP Racing Exhaust
30mm Carburator
DR2 Variator and racing clutch
1500 Torque spring, Kevlar Belt
Oil Cooler and catch tank
Racing magneto and CDI
A-__ Camshaft(still deciding)
K&N Toyota Air filter and tube
Rear Paddle Tires
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