rrico_Mach_1

This is great information, thank you! Fortunately, I only use Premium fuel (is there an additive i should be using to improve quality?). I will update to see if any of these have improved the issue.

Hello - last weekend I drove my 71 mach 1 to and from a "get together" (because we all like to subtly show off). However, when I got home, and shut it down, the engine shut down pretty rough and 3 seconds after it quieted down there was a loud backfire from the exhaust. Any idea where I should start? I recently installed a new Holley 670 carb. Vacuum leak? Timing? Other? Unfortunately i only see her on the weekends so i try to do my planning before then. Any help is much appreciated.

Great eye! I believe it is, it was the shop owner's newest project car. gifted by an older woman since I believe he had changed that car's oil since she originally bought it?? not sure of the whole story but I do know it's a BA gift

hello everybody. I have been a passive viewer of the forum for a while, but am just getting to introducing myself... my dad received a '71 mach 1 as payment for some concrete work he did when i was about 7 yrs old. He had no need for a muscle car since he was a contractor and only needed more trucks. But his plans to sell the beauty were stopped when I overheard his conversations and offered him everything in my ceramic piggy bank (>$10). Unfortunately I was unable to work on the car until i graduated college, and my first "few" paychecks went into restoring it. Long story short, here we are now, with a Raven Black '71 thicc babe. OG Color: Grabber Yellow & Black Stripes (gf convinced me to not go back to yellow since all she saw was a highlighter... some regrets, but not many) Driveline: H-Code 351 Cleveland & C4 auto Ignition Swapped to MSD Ignition Control Box & Distributor Doug's Headers & fabricated exhaust Magnum 500 wheels I have many plans for this car so just trying to be a sponge on this forum and absorb as much knowledge/input as possible. Thanks!