Holley 6299
That translates to the low performance bowls
On the 390 cfm
this 390 has the performance bowls
I'll post pics of metering block numbers later
Never seen one with performance bowls ??
That translates to the low performance bowls
On the 390 cfm
this 390 has the performance bowls
I'll post pics of metering block numbers later
Never seen one with performance bowls ??
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