Do you have a kinda choppy sound from your car say between 1,800 to 2,500 rpm with your 1000 HP carb.And what kind of fuel do you run in your car.Here's my combo 1989 Mustang Coupe,466,flattop SRP pistons,Eagle Rods,Herbert Solid Roller cam .670-.690 lift 256-266 .050 duration,Victor Intake,Holley 1000 HP carb,about a 5/8" carb spacer,86-93 jets,C-4 trans and 3.73 gears.Here's the thing between 1,800 to 2,500 it has that choppy sound i was talking about.I thought maybe it was to lean since the plugs always come out looking real clean.But when i richened it up seemed like it got worst.I was always using AV gas in it but just mixed some 94 Sunoco with the AV gas.I had a 850 downleg DP on this motor a couple years ago and i don't think i ever noticed this problem with that carb.I bought the 1000 HP carb for only $375.00 off the N.M.R.A boards,so i can't complain about the price i guess.Sorry about writing a book.
Thanks Mark.
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