Holley Sniper EFI Install + First start! 71' GTO -Wiring, custom fuse block & electrical tips.

1971 Pontiac GTO 455 Restoration – Episode 5: Holley Sniper EFI Install & First Start! Welcome back to Kenley’s Car Stories! In Episode 5 we finally fire up the 455 after months of work. -LINKS BELOW⬇ This episode is packed with real shop progress: • Full Holley Sniper 2 EFI + Hyper Spark distributor and controller installation • Custom battery cables, underhood fuse block, and complete power distribution upgrade • Hand-made MSD 8mm spark plug wires • Original engine harness simplification (keeping only oil pressure & temperature) • Electrical 101 “Nerd Corner” – diagnosing high-resistance terminals with a DVOM • Vintage Air wiring, firewall bulkhead connector, Holley module mounting, and in-tank fuel pump install • Software download, firmware updates, and solving a no-start condition (PDM vs. relay wiring fix) Watch the 455 come back to life for the first time in over four months — complete with smoke, high-fives, and the satisfaction of a running engine. No test drive yet — the car is headed to body and paint next (doors, hood, and trunk are off). If you’re restoring a classic or just love the process, drop a comment. Bible Verse of the Episode: “Suffering produces endurance…” (Romans 5:3) — -Suffering: Experiencing trials, hardships, or distress. -Endurance: Developing patience, perseverance, and the ability to keep going. -Character: Building proven spiritual maturity and resilience. -Hope: Gaining a confident assurance in God's promises that will not disappoint. 🔧 Tools & Parts Featured: • Holley Sniper 2 EFI System • Underhood Fuse Block • MSD Spark Plug Wires Links to all special tools and vendors are in the description below. No sponsors — just honest shop work. Thanks for watching! Like, comment, and subscribe with notifications on so you don’t miss the body and paint phase. See you on the next one! #1971GTO #PontiacGTO #GTO455 #HolleySniper #HolleyPerformance #VintageAir #ClassicCarRestoration #ArizonaSurvivor #MuscleCarRestoration #EFISwap #Pontiac455 #GTOBuild 00:00:00 Intro 00:07:41 EFI UNIT/INSTALL DISTRIBUTOR/SET TIMING TO TDC 00:21:46 BUILD WIRES AND WIRE ROUTING 00:27:39 HOLLEY CONTROLLER LAYOUT&PLACEMENT 00:34:00 BAD ATTITUDE C10/TXDRAGRACER/BLAKE 00:37:18 BATTERY WIRING & FUSE BLOCK 00:39:40 MAKING BATTERY CABLES 00:43:48 CHECKING NEW CABLES CONTINUITY(RESISTANCE) 00:45:37 NERD CORNER-TESTING FOR HIGH RESISTANCE 00:48:06 CUSTOMIZE MAIN ENGINE HARNESS -HOLLEY &VINTAGE AIR 01:02:31 COMIC RELIEF -WONKY CAMERA GIMBLE 01:04:06 WIRING IN DETAIL-TEST STARTER (FIRST CRANK)! 01:09:11 FINISH ENGINE BAY HOSES,WIRING -FAILED TO GET IT RUNNING 01:11:58 VINTAGE AIR -HEATER HOSES 01:16:13 GATES HOSES CLAMPS 01:19:18 HOLLEY IN-TANK FUEL PUMP INSTALL 01:22:51 HOLLEY PDM & HYPERSPARK MODULE PLACMENT 01:24:05 INSTALL FUEL TANK-FINISH WIRING EFI 01:29:05 FUEL FILTER PLACMENT 01:30:17 WIDE BAND OXYGEN SENSOR 01:33:26 BLUETOOTH & SOFTWARE 01:36:38 FIRST POWER UP, DOWNLOADS AND CHECKS 01:37:32 HOLLEY INITIAL SETTINGS FOR START-UP 01:40:16 FUEL PUMP NOT WORKING DIAGNOSIS 01:43:23 I MADE A MISTAKE... 01:46:29 MY MISTAKE... EXPLAINATION. 01:48:16 FIRST START UP IN MANY MONTHS!! 01:49:56 FINISHING TOUCHES-TIDY UP WIRING 01:54:39 VACUUM FILL COOLING SYSTEM (COOLANT ) 01:57:48 TIMING CHECK AND IDLE SET 02:01:56 OUTRO-THE END -NOTE: NOT SPONSORED BY ANY OF THE LINKS BELOW. LINKS: HOLLEY PERFORMANCE-https://www.holley.com/products/fuel_... VINTAGE AIR- https://vintageair.com/ BLAKE- @BadAttitudeC-10 https://www.badattitudeperformance.com/ https://www.ebay.com/sch/i.html?item=... INLINE TUBE- https://www.inlinetube.com/ - BRAKE LINES & MORE! VENDORS & PARTS State to State transmission- Address: 2540 E Bell Rd, Phoenix, AZ 85032 Phone: (602) 971-1962 O'REILLY AUTOPARTS- BATTERY CABLE- https://www.oreillyauto.com/detail/c/... CJPONY- https://www.ebay.com/itm/800022837272... FUSE CONVERSTION AMERICAN AUTOWIRE-American Autowire 510587 Splice Clip Single & Double Crimper Set 20 gauge to 10 https://www.amazon.com/dp/B0816YKBVX?... -SPARK PLUG WIRE CRIMPERS AMAZON Spark Plug Wire Crimper, Newdeli Crimping Pliers for Spark Plug Stripping Tool, ND-2048 for Crimping and Stripping Spark Plug Wire, Dia 8.0-8.5mm,Ratchet spark plug wire crimping tool TRACTOR SUPPY STORE-https://www.tractorsupply.com/ https://www.bible.com/bible/59/ROM.5.... Not only that, but we rejoice in our sufferings, knowing that suffering produces endurance, and endurance produces character, and character produces hope, and hope does not put us to shame, because God’s love has been poured into our hearts through the Holy Spirit who has been given to us.