The key to Gil's power combo is how well the selected parts complement one another. The cylinder heads, camshaft, and rearend ratio have been chosen to provide good mid- to upper-rpm power from the 383 small-block. The cylinder heads are good-flowing AFR aluminum items and the camshaft a reasonably stout hydraulic roller unit with moderate duration. The rearend ratio is a steep cog, but with the overdrive automatic, freeway driving is accomplished at low rpm. The package with a shot of NOS (applied in High gear only) propels the Camaro to low 12-second e.t.'s--on DOT tires and through the mufflers.
Gil Roldan
'89 Camaro
Specs
Displacement - 383 ci
Block - GM
Bore x Stroke - 4.00 x 4.380 inches
Compression - 10:1
Rod - 5.7-inch
Induction
Fuel injection - Turbo City high-flow SBC TBI
Intake - Edelbrock Performer TBI
Controls - Turbo City custom EPROM
Camshaft Specs
Comp Cams hydraulic roller
Valve lift - 0.510/0.520 inch
Duration @ 0.050 - 230/236
Lobe separation - 114
Cylinder heads
AFR 195cc SBC aluminum
Valve size - 2.02/1.60-inch
Rockers - Crane Gold Race, 1.6:1
Power Adder
NOS 150-shot nitrous
Drivetrain
Transmission - TCI Super Street Fighter GM TH700-R4
Converter - TCI Street Fighter, 2,600-stall
Rearend - GM 10-bolt, Auburn posi
Gears - 4.10:1
Rear rubber
P275/60R15, BFGoodrich T/A Drag Radial
Numbers
Peak Horsepower - 410 @ 5,600 rpm (motor, 510 w/nitrous)
Peak Torque - 435 @ 4,000 rpm
Performance - 12.3 @ 114 mph
60-foot -1.85
Source: Chevy High Performance Magazine
