Hi Again Group.im Hoping Someone Can Point Me In The Right Direction To Fix This Problem.i Have Been Trying To Get The Bugs Out Of The 383 Sbc Engine I Built And Put In My Nova.here Are The Engine Parts List So You Know Where To Start.i Started With A Freshly Bored And Honed 350 4bilt Main Block.i Put In A Scat 3.75 Stroke Cast Crank.scat 5.7 Rods,arp Bolts,kb Hyper Silvolite Flattops,speedpro Rings Which I End Gapped To Match The Clearances Black Wanted On These Pistons Because Of Ring Placement.clevite 77 Bearings Throughout.aluminum Heads,2.02,1.60 Valves,double Springs To Match The Cam,a Lunati Voodoo Hyd Cam,527in,544ex And I Think A 110 Lobe Seperation.duration Is 244,254 @.050.lunati Hyd Lifters,comp Cams Push Rods And 1.5 Aluminum Roller Rockers And Stud Girdles.melling Oil Pump,edelbrock Rpm Airgap Manifold And A Holley 750 Vac Secondary And A Carter Mechanical Fuel Pump.the Engine Ran Real Good But Seemed Like It Had Way More To Offer.i Installed A Proform Main Body.now The Trouble.it Idles Good,drives Good Under Light To Medium Pedal.but When I Get On It,about 3500 Rpm It Acts Like It Was Shut Off Until The Engine Drops To Around 1500 Rpm Then It Perks Up And Runs Fine Until You Get On It Again.before The Carb Work It Would Pull Till About 5500 Before It Would Start Breaking Up.any Help Would Be Greatly Appreciated,thanks In Advance.