Web15 apr. 2010 · Mar 22, 2010. #1. I have a healthy 258 with Howell TBI and it is running really rich all of a sudden. I went from 14 mpg down to 8. I have 4.56 gears so I know I'm not going to get the best mpg. Straight exhaust without a cat converter. I have a small amount of white smoke on startup. I put my hand in the exhaust and there is a small amount of ... Web9 okt. 2024 · howell ignition tbi or 258 timing jzak Old Time Jeeper Gold Supporter Oct 9, 2024 #1 Hey Guys, I wanted to get some opinions about correct ignition timing for a AMC …
Final Howell TBI Question. Idle Speed.... CJ-8
Web11 jul. 2002 · I was getting about 12mpg with my 258 with the Weber carb. in my "88" wrangler. I am running 32 MT's with stock gears right now. I replaced the carb. with Howell TBI and get 18 mpg. That driving 60-65 on interstate. I use it as my daily driver, 300-500 per week. I found a used Howell system and installed it. Web5 jun. 2012 · 3,560 Posts. #6 · Mar 25, 2012. The Howell kit uses a Walbro fuel pump and its rated for 40 PSI. Your regulator is located under your Injectors and you need to disassemble the top of the TBI to get to the adjustment screw Howell recomendes 12 PSI . Remember its anti clockwise to increase the pressure and clockwise to decrease the … hawaii parents travel take kids out of school
Junkyard TBI Vs Howell - Full Size Jeep Network
Web5 jun. 2001 · Re: Help - Howell TBI Install on 258 Fuel filter goes between the tank and the fuel pump. Truthfully input fule line and output lines should be common in the TBI body. … WebHowell Engine Developments, Inc. was formed in 1988 by Bill and Matt Howell to support the growing trend towards the use of electronic fuel injection in the Hot Rod/Street Rod and Four Wheel Drive Industries. At … Web11 aug. 2024 · A couple things come to mind. 1- The Howel system is legal in California. Depending on how the Colorado law gets written might determine which system I look at buying. I don't know if the Holly system will pass Colorado muster. It depends on how blue the state becomes. hawaii paradise resort