Ok now...
I pride myself with a flawless experience in tunnel ram applications. A tunnel ram will help alot over your current manifold design, but with a single carb set-up? No way! The runner length is and location with respect to the base of the carb hurts proper fuel distribution.
The best approach would be a Dual 660 set-up (I know I preach 660's!). These carbs are "excellent" for a small block at that RPM. Ensure that you get a set that have a 850 baseplate conversion which will waken up the response with that RPM band.
You will thank me tremendously with that combo. Otherwise look at a dual HP650 set-up which is a little more complicated with linkage, fuel lines, and proper positioning, but none-the-less another flawless set-up.
Good luck.
~Ty

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1981 Crusader Jetboat, 468BB* Tunnel Ram NOS, TPC HP750
http://www.tpcracing.com
<font size=-1>[ This Message was edited by: TPCRacing on 2/4/03 9:22am ]</font>