MechRick":2omuvebz said:pmuller9":2omuvebz said:The Crower 284HDP (19205) .509”/.517” 220/222 284/290 110deg
Based on my experience with Comp's 268H (219 @ .050", 110 LC) that *might* lope a bit with a carb intake. Depends on idle RPM.
The lope went away with an EFI intake and aftermarket (Megasquirt) fuel management.
The OP has made an intake manifold with long runners that will help with intake port reversion at low rpm similar to the EFI intake.
It should tame the lope so there is very little at a slightly elevated idle.
I like FTF's idea of "Dial a Lope"