i have the square bore P4B Holley carb moroso air cleaner on 1969 #48 heads on a 350 block with HEI no problems
Do you have firewall clearance?
It might not have much to do with manifold height but more to do with carb / runner placement front to rear or spreadbore vrs square
Last edited by Formulas; 12-15-2021 at 06:33 PM.
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