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The dyno chart for that was from my old 331 stroker: Stock Roller Block (4.030" bore) Eagle 3.25" stroker crank and rods Mahle 4.030 Pistons Custom Hydraulic roller cam (.571" lift) AFR 185 heads 1.75 Long Tube headers 30# injectors I scattered that engine at Daytona My new engine is a 347. Dart SHP Block (4.125 bore) Scat 3.25" stroke forged crank and H-Beam rods Custom Hydraulic roller cam (.625" lift) AFR 185 heads Long Tube headers 42# injectors I use Megasquirt MSPNP 2 to tune both engines.

It can be confusing when talking about technical areas vs car model areas, but we do have the "Ignition and Electrical" sub-forum here: https://forums.hybridz.org/forum/16-ignition-and-electrical/. Yes, I think it's fairly common to add new circuits/etc to these old cars. I've done it to the last couple of my cars to simplify/improve the electrical capabilities over the stock harness. I've always used off-the-shelf breakers, relays, fuse panels, switches; but there are a bunch of pre-built kits that are available through numerous vendors. I like to use marine hardware if I can find it; as it's typically extra beefy and durable. Good luck with it; and please be sure to post your results once completed!!

I have had a lot of problems with the throttle cable and related parts. a late night job came up with an extremely basic solution for cable hookup at the carb....I made a bracket and got a brass cable stop at Auto Zone, and the gas pedal bottom edge hitting the floor keeping full range from happening were the culprits. FIXED.

Coilovers showed up today 🤩. Got them assembled and will get the fronts on the car tomorrow.

Hi mate, Low profile alloy air cleaner top with a carbon fibre air cleaner with the collection point in front of the radiator. Flexible rubber joiner between the alloy top hat and the carbon fibre air cleaner. The alloy piece is only about 2.5 inches high. Just another idea for cold air induction. Regards David.

What you're missing is that that the Holley lights have two +12v receptacles and one ground receptacle. The stock wiring harness supplies one constant +12v feed and two switched ground feeds. By using a simple wiring adapter you could make it work with either high or low beams, but the stock switch wouldn't work both High and Low beams properly because all it can do is switch ground on and off. If you didn't want to use his method of rewiring the light switch, you'd have to use two relays to supply 12v High and 12v Low to the LED bulbs, and the common terminal would go directly to Ground. Does that make sense?

Here is a quick way to check the polarity and the high low switch. Use a voltmeter and ground the negative side of the meter to the car ground. Take the positive lead and touch it to the center of the high low switch. You should have positive +12V with the headlight switch turned on. The low beam wire (Red/Yellow) is at the top and the high beam is (Red/White) at the bottom. The positive +12v will toggle between the two when the turn signal switch is toggled. I enclosed the switch and labeled the different terminals. If that is correct check the polarity at the headlight plug. You should have one ground and +12V at low beam and +12v at high beam. One other thought is check the fuse block and make sure the two headlight fuses are good. You will have one for the left and on for the right light. Hope it helps.

MinneZota, I am not sure what you wires you are showing in the picture, so it hard for me to determine what was cut. From the instructions above you do not need to cut any wires or connectors for the swap. You must make the ATO fuse jumper wire and the small jumper wire pictured in the instruction above. By using the two jumper wires you made this allows you to plug them in the existing harness and swap the main red and black wires pictured. This changes the polarity for the LED headlights to work correctly. You can message me I can walk you through it.