Help Please! I have a 440 stroker(496) It has 10:1 with 193lbs cranking pressure.18inches vacuum @ 800rpm. Comp-Cams 294solid 248@050 Lift 0.560 with 1:6 Rockers.Installed straight-up.Was using Weiand Xcelerator 7512 Single-Plane Manifold.650 D/P Holley. Were using Hughes Engines Heads,Stage 2 452's Factory Iron. Now running Stealth/440 Source which have same pressure & revability. 6800 in 1st & 2nd on 4-Speed New-Process with 2:75 Gears out back. Car wit me weighs 3960lbs & runs 12:00-12:25@117-118mph in the 1/4 mile.
I have a Six-Pac set-up with Fuel Technologies Metering Plates.
Something is wrong, it does not like to pull much passed 6000rpm. 64 jets centre,10:5 Power-Valve;
84 jets for end carbs. Accelerationion seems considerably less than 650 as well.
Any ideas, especially from someone with similar set-up or thoses in the know.