What are you using for a surge tank?

For a while I used the stock 30LB injectors on my 4.3 V-6 & 21 psi, I ran out of injector, switched to 36 lb & running up to 25 psi & spraying methanol.
Injectors still too small. But it's sort of a good thing the heads are restrictive flowing 150 CFM w/a 1.94" intake.

MBHD
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12 port SDS EFI