I found that out back in 1985, with my street/strip no's match 340 '71 Cuda. Stock bottom end/2.02 heads, came with a 750DP when bought, had a .484 hyd/3500stall/3.55's, upgraded to a strip dom intake+2" spacer/4.30's/.590 purple sft/4200 stall/race hdrs and that 750DP, always thought there was more in it with a bigger carb so changed to a worked by me 850DP which gained me 1.8 tnths in the 1/4. I lent that carb to a guy running a 215ci buick motor (rover 3500cc V8) in his MK1 Ford Cortina stick race car and he went 2/10nths quicker with it over his 600, he couldn't believe it!!!.....got fed up with everyone telling me at the race track that my 750 was too big for my engine, think outside the box and formulas.
