406 cid Pontiac engine on the dyno making 351 horse and 431 ft lbs of tq by Tin Indian Performance

This is Mickey Turrin's 406 Pontiac engine on the Dyno. It is pretty much a stock rebuild using Seal Power pistons, RPM rods, a crower 60916 cam, re-done 6x heads, Performer manifold and 750 Q jet carb. The engine makes over 13" of vac at 850 rpm. Engine was rebuilt with Tin Indian Performance gaskets and seals and is topped off with a set of TIP Billet-TEK aluminum valve covers. The engine makes 351 horse and 430 ft lbs of torque. Built by Tin Indian Performance.

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1964 Pontiac Tempest 389 Tri Power
In 1964, the Tempest was redesigned as a more-conventional vehicle and enlarged from a compact to an intermediate-sized car with a 115 in wheelbase and an overall length of 203 in. The unibody, curved driveshaft and transaxle were gone; they were replaced by a traditional front engine, front transmission, frame and solid rear axle design used by all of GM's other cars, with the exception of the Corvette and Corvair. Together with its sister cars (the Oldsmobile F-85/Cutlass and Buick Special/Skylark), the Tempest/Le Mans moved to the new A body platform shared with the new Chevrolet Chevelle, and all three cars received updates and modifications standardizing them throughout. The Le Mans name was discontinued as a separate series, so now the cars were, in ascending order, base Tempest, Tempest Custom, and Tempest Le Mans. Replacing the previous half-a-V8 four-cylinder engine as standard equipment was a new 215 in³ inline six-cylinder engine with one-barrel carburetor and 140 hp (104 kW; 142 PS). This six was basically a bored out version of the Chevrolet-built 194 in³ six and offered as Pontiac exclusive. Optional engines included two versions of the 326 in³ Pontiac V8 introduced the previous year, a two-barrel 250 hp (186 kW; 253 PS) regular fuel option; or the 280 hp (209 kW; 284 PS) 326 HO engine with four-barrel carburetor and 10.5:1 compression ratio which required premium fuel. Transmissions included a standard three-speed manual with column shift, four-speed manual with floor-mounted Hurst shifter or a two-speed automatic; the latter was a version of Buick's Super Turbine 300. The popularity of the high-performance 326/336 V8 package the year before prompted Pontiac to make it available again on the Tempest Le Mans and give it a name: GTO, using 4bbl. and 3 x 2bbl. carburetor larger 389 ("6.5L") V8's of 325HP and 348HP, producing the watershed car of the 1960s and 1970s

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