Thread: i need some help

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Originally Posted by jerry clayton

the old rule of thumb about needing air, fuel,spark needs to be rewritten to say fuel at a pressure that the induction system can handle----------

I would say it still holds true. Air, Fuel & Spark are the basics, tuning comes into play after that. I would add that fuel pressure needs to be stressed more under tuning procedures. As does finding TDC #1 on compression stroke when installing a distributor.

More to the point, unless your electric pump is internally regulated you need a regulator before the carb to limit the pressure to nominal 5 psig. As has been said, more pressure will blow past the needle & seat, flooding the bowls and creating a fire hazard. At this point your air cleaner may be fused to the point that it's choking the engine for air flow.

I had a similar problem years ago on a 350 chev. It just started backfiring and would not run well at all. After a day or two of cussin and checkin I found that the tip of thr rotor had come loose just enough where it would move back and forth about 30+ degrees. That much movement really threw the timing off, then on, then off....

Sounds like too much fuel may have cause fire that melted triangle of death that plugged carb. Time to take carb off and buy rebuild kit if needed. The kits are fairly cheap and usually have good instructions, that even I can follow. Also pressure regulation to the carb as stated would also be in order. Keep us posted.

Nice post tech!