Valve covers; Holley; 241-80
Valve cover gaskets; Earl's; 29E03B
Oil filter adapter; GM; 3952301
Oil filter; Pep Boys; 0-76333-75134
Oil (10W30); Pep Boys; --
4 ½-inch water plugs; Pep Boys; 0-37495-40081
3 3/8-inch vacuum plugs; Pep Boys; 0-89601-60180
Distributor; Pertronix; D100701
Coil; Pertronix; 45111
Plug wires (universal fit); Pertronix; 808490
¾-inch reach, non-tapered spark plugs; Pep Boys/Autolite; AR51
390 cfm; 0-80507-1
600 cfm; 0-80540-1
650 cfm; 0-80541-1
750 cfm; 0-80528-1
830 cfm; 0-80509-1
950 cfm; 0-80496-1
1,000 cfm; 0-80513-1
Headers; Hooker; 2117HKR
Header gaskets; Fel Pro; 1405
Header bolts; Used; --
Intake carburetor studs; Used; --
RPM Air Gap; Edelbrock; 7501
RPM Performer heads; Edelbrock; 6090
Smeding Performance 383
Block: GM four-bolt main
Compression ratio: 9.8:1
Crankshaft: Nodular iron
Rods: 4340 forged steel
Pistons: Hypereutectic with graphite coating
Rings: Moly
Camshaft: Roller hydraulic, 0.488/0.510-inch lift, 234/244 degrees duration at 0.050 inch
Rockers: Roller, 1.5:1 ratio
Heads: Edelbrock RPM Performer, 2.02/1.60 intake/exhaust valves
Intake: Edelbrock RPM Air Gap
HP: 440 at 5,500 rpm
Torque: 440 lb-ft at 4,300 rpm
Cost: $4,895
As it turned out, our 383ci engine matched with HP series Holley carburetors didn't require much attention to tuning. We were lucky to have EGT and 02 sensors to tell us exactly what the air/fuel ratio was doing. However, we are aware that most enthusiasts purchase a carburetor, head for the track, and tune according to performance. Most of this performance usually comes from changing jet sizes and altering the air/fuel mixture screws. While the external air bleed screws are easy to access, the main metering jets can be quite a pain, which is why Holley offers several parts and tools to help with this task. We did not have a need to use our tools (pictured above) in the story at hand, but we did feel they are worth mentioning. This is what we bring whenever we plan on doing carburetor work.
Metering block gaskets; 108-89-2
Bowl gaskets; 108-83-2
Jet change tool; 26-68
Quick-change jet bowl; 34-25
Quick-change jet bowl; 34-26
Air bleed assortment kit; 36-240
Jet assortment kit (sizes 64-99); 36-181
Close limit jet assortment kit; 36-213