There is a number on the side ... a 6.5 is usually what comes with the carb ...a 55 45 34 is lighter usually depending on the vacumn you would go lighter usually 1/2 the vacumn guage ... a 6.5 would mean you have 13 inches of vac because a HP cam creates less vacumn ... your TURBO BOOST was actually the power vlave kicking in and adding Additional Fuel to the System all at once at higher rpm ... you would rather it come on in a smoother fashion ? check the vac pressure then divide by 2 and install that power valve.
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