[GTO-relic]

BG did more with less, because he was custom tailoring carburetors for each specific engine,
whereas Holley was selling many different SIZES of carbs, in 50cfm step stairs increments, DP and vac. sec., and letting the buyer work it out, as to what one worked best on their specific application.
2 different approaches.

I called BG when he was still answering the phone, and building Holley reworks to specific applications, back in the 1990s.
He built us a Holley 850DP, for a 470 CID Pontiac, with E-heads, Victor intake, with 10:1, and a solid roller cam 242/252 Comp
this was back in the 1990's. to this day, that was the best, most responsive street carb I ever bolted onto an engine, period.
it had 4 drilled throttle plates, and the idle mixture only needed to be adjusted 1/8 turn from where he set it at. unbelievable...
He called it the "general competition" carb. Just like the later Race Demons he sold.
he was able to do this, just from the specs on the phone, for cam, CR, CID, vacuum at idle, gearing, weight, intake, headers, trans, tire size, driving style, etc.
the throttle response would rip your head off at any rpm. the owner said "this thing is scary now".
it was 4000 lb. with driver, in a 72 GTO, with 6 speed Nash, and 3.70 gears. Full stock everything. It had a stereo in it, rugs, heater, wipers, lights, and full exhaust. Like a show car. license plate, daily driven. The owner had never even street raced before, he drove it to the track, cut a 1 second (not a typo) reaction time, and it went 12.60 at 110mph granny shifting it, letting off gas completely between gears, and launched it like a school bus going up a hill from a stop.

we had tried a Holley 4781 DP first, it fouled the plugs black, stunk like gas idling, burned your eyes, had some power, but it stalled every time we hit the brakes. You could back up 20mph hit brakes, no problem, it wouldn't stall. but going forward, it would stall instantly. brand new Holley from Summit. we returned it for refund.

The BG carb, has golden brown tan plugs, in daily street driving. Perfect burn.

here's a later BG Demon to Holley comparison:

Holley 4781 DP, 1.75" throttles, 1.560" venturis- 850 cfm dry flow

Race Demon 825- 1.75" throttles, 1.420" venturis- 825 cfm wet flow.
i.e. 890 cfm dry flow.

the vintage Race Demon has 40cfm more flow, with a .140" smaller venturi
that's because of the scalloped entry, better boosters, main body, baseplate. smoother, more precise.

and it has better emulsion. 3 emulsion bleeds per barrel in the metering block, instead of only 2 like an old Holley.
the engine gets a better vaporized mixture.
and...removable/tunable air bleeds, idle feed restrictions since day 1.

BG isn't out of business because he didn't know how to build carbs, he was amongst the best at it.
He's out of business, because the company took loans against all their real estate, assets, to fund operations, like all companies do...and lost their arse during the 2008-2010 real estate/housing/banking crash. That's because a bank loan at 6%, turns out to be 200% interest over principal, with compounded interest.
He was taken out by predatory lenders and banks. Just like everyone else. Gobbled up by the comglomerates.