Bruce - how high is high?
Check the link, which lists the multicarb manifolds available for Pontiac of which I am aware:
http://www.thecarburetorshop.com/Pon...emanifolds.htm
The Offy manifolds labeled as "competition" are somewhat higher than the others. The M/T cross ram is also higher than the others. This manifold has gotten a bad rap as some have used it with bowtie carbs instead of Pontiac carbs, and gotten less than desirable results (which is predictable).
I have no doubt that virtually any of the listed dual quads (with appropriate carbs) would outperform the 1959 tripower.
Jon.
__________________
"Good carburetion is fuelish hot air".
"The most expensive carburetor is the wrong one given to you by your neighbor".
If you truly believe that "one size fits all" try walking a mile in your spouse's shoes!
Owner of The Carburetor Shop, LLC (of Missouri).
Current caretaker of the remains of Stromberg Caburetor, and custodian of the existing Carter and Kingston carburetor drawings.