Vacuum Secondaries

My street 367 has had 5 different carbs on the AirGap; from the lowly AVS, to the mightyTQ, to 3 different Holleys. It liked the750DP the best, the biggest I had.
I have come to believe that the more cylinder pressure an engine has,and the better the LD results, the better the throttle-response will be.... with any carb.
With my cylinder pressure up at 185psi, I bet I could run a lot bigger carb yet,and not suffer any response issues. Of course I'm basing this guess on the awesome response of the current 750DP. I would under no circumstance, run less.
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And of course the fact that with the 750DP, and with 3.55s,the 295s ;scream mercy,bloody mercy, to past the legal speed limit, and smoke in a straight line for over six seconds, and very often howl while drifting around a corner in second gear,and occasionally have been busted doing a near full-lock slide in a 150ft or so circle;
well,
I ain't ever going back to a wiener 600vs.
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That published formula worked bang on for my combo; (367x7000)/3450=744cfm, heehee. Let her buck,Freddie.
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The very first trip around the block I ever took with my combo I knew I was in trouble; those 245/50-14s were a joke. And so were the 225s up front. I could hardly burn them off fast enough. Same for the 275/50-15s. And the 275/60-15s. And yes even the 295s. But at least I can control the power-slides with the 295s.
It was sorta ok :( with the skinny tires and the 600vs, sorta like that Dart, but with more tire-smoke;
But the 750DP made it an animal, that no street-tire on the stock rear end, could harness.
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If it sounds like I am talking down my nose at wiener carbs, it's only because I don't have a wiener engine. Get rid of that 150 psi cylinder pressure!. Step up to the plate that starts at 180psi. My engine is nothing special. It's a slammed together item that anybody can build. There is only one thing different about it from most builds, and that is the cylinder pressure. Well that and, maybe the leakdown results have something to do with it too,lol.
Build it once.
I get that aluminum heads cost money. But so does the disappointment of an underpowered slug at 155psi. And .......
you just can't put a price on the ear-to-ear grin of a 180psi ,any size, SBM.