Holley Pro-Jection 501-2

[Mike Olsson]

     Hi guys,
     
     I'm the weirdo that threw out a question on running a O2-sensor to a 
     panel gauge and thus monitoring the air/fuel ratio in actual driving 
     situations. I haven't given up the idea - I've just finished putting 
     together a homemade meter based on the LM3914. As soon as I've fitted 
     a three wire sensor and hopefully made everything work, I will come 
     back (is anyone interested?) and share my experiences.
     
     As you might recall. have a 225 slant 6 with a Weber 32/36 DGAV 
     2-barrel staged carb. Though I believe it's very versatile, I still 
     would like to see what the old \6 can do with fuel injection.
     
     Someone recommended me to check out the Holley 501-2, which is 
     supposed to work as a replacement for six cylinder (258"?) Jeeps. I 
     checked the Holley Website and it seems to be a 300 CFM TB with a few 
     tuning possibilities and an optional closed loop system.
     
     I hunted around the Message Board and it was pretty interesting: A lot 
     of people had all kinds of complaints on different types of 
     Pro-Jections - some were extremely pissed with anything by the name 
     Holley. I got the feeling though, that most of them had not any 
     theoretical or practical experience with fuel injection before trying 
     to swap the old carbs with this set-up. There were also some messages 
     that expressed real satisfaction with the system.
     
     Question:
     
     Has any of of you any experience with these set-ups? I understand that 
     the Holley fuel pumps aren't the best, but are there other draw-backs 
     which are unique for Pro-Jection? Is this junk or what? Todays tip: 
     Anyone interested in buying a cheap hardly used Pro-Jection should 
     post a wanted ad in the Holley Fuel-Injection message board.
     
     
     Grateful for any advice
     
     
     / Mike
     
     '65 Valiant station wagon
     '68 Mustang conv.