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"... where street races are held at least once a month" Is this a public road and not closed for racing by authorities? If so, strange the Police wouldn't learn of the regular races and shut it down. Race tracks have provisions for safety. Paul Walker ("Fast and Furious") died in showing off...

If the head gasket swap doesn't work, try swapping the Holley injectors left-right to see if the bank with coated plugs changes. Could be the injectors aren't flow-matched. That is critical when fuel is controlled by a single O2 sensor.

Most hydrogen peroxide rockets simply flow highly concentrated H2O2 (~90%) over a catalyst like platinum, which decomposes it into hot water (steam). That is used in the Bell Rocketpacks. In this accident, the rocket propulsion was incidental. The dragster failed because chute deployment...

Very true about basics. In EFI engines, the O2 sensor has only limited authority on fuel flow, something like +/-10%, termed "fuel trim" if using an OBDII adapter (1996+ vehicles). If the common MAP sensor type controls, the controller adjusts fuel based on engine rpm, and intake manifold...

I don't know the Holley Sniper, but for throttle bodies in general (both TBI and MPFI), the throttle usually closes off tightly and all air flow at idle is thru the IAC valve. Thus, if you truly plugged the IAC port, the engine should have died, unless getting air somewhere else (vacuum leak...

Would terrify me to go airborne at the front and finish at 125 mph, though your car appears stable. Tesla fans brag that the latest factory Model S Plaid runs a 9.2 sec qtr mile, while a 1967 Plymouth slant-six ran 9.1 sec (w/ turbocharger). The difference is in a street-driveable car, which...

Nice that it folds up like their engine lift. Even nicer if they could combine the two into one tool for less cost and better storage. If designed right, might be able to use the lift arm to position the engine on the plate. Worst are the 3-wheel stands. I had a M-B 5 cyl diesel on one and...

At least they were keeping it real. Worst is carefully driving your collector car on a quiet Sunday morning and a goofy kid in his parent's Prius runs a redlight while staring at their device and T-bones you, then says, "At least I hit an old car.".

I've used a hand-drill stone hone. Neither those nor the ball-hones will fix an out-of-round cylinder, but the machine hones at shops will. Per TV shows, you actually hear them change from a whack-whack sound to a smooth sound as the cylinder becomes round. Shops usually hone after an...

67Dart273 gave you great info. I just rewired my 65's engine and dash harnesses, so can add some mostly correct answers. The black wire to the ignition switch is the "accessory feed output". You don't need that if you are supplying accessory power elsewhere with a switch. If you have a...

Speaking as a mechanical engineer, it would be hard to get a definitive answer. The loads depend on both torque and engine speed. Horsepower is the product of the two. Torque relates to the primary forces of combustion - force on the piston and thru the connecting rod. However rpm brings in...